Home / 22,578.21-31,155.40-12,504.11

Finding the Fourth Proportional to 22,578.21, 31,155.40 and 12,504.11

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Solution

The fourth proportional to 22,578.21, 31,155.40 and 12,504.11 is: 17,254.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,578.21 : 31,155.40 = 12,504.11 : x
  2. Step 2: Convert to fraction form
    22,578.21/31,155.40 = 12,504.11/x
  3. Step 3: Cross multiply
    22,578.21x = 31,155.40 × 12,504.11
  4. Step 4: Simplify right side
    22,578.21x = 389,570,548.69
  5. Step 5: Solve for x
    x = 389,570,548.69/22,578.21
  6. Step 6: Final answer
    x = 17,254.27

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.