Home / 22,578.21-31,155.51-12,506.40

Finding the Fourth Proportional to 22,578.21, 31,155.51 and 12,506.40

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Solution

The fourth proportional to 22,578.21, 31,155.51 and 12,506.40 is: 17,257.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,578.21 : 31,155.51 = 12,506.40 : x
  2. Step 2: Convert to fraction form
    22,578.21/31,155.51 = 12,506.40/x
  3. Step 3: Cross multiply
    22,578.21x = 31,155.51 × 12,506.40
  4. Step 4: Simplify right side
    22,578.21x = 389,643,270.26
  5. Step 5: Solve for x
    x = 389,643,270.26/22,578.21
  6. Step 6: Final answer
    x = 17,257.49

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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.