Home / 22,603.12-31,190.60-12,530.60

Finding the Fourth Proportional to 22,603.12, 31,190.60 and 12,530.60

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Solution

The fourth proportional to 22,603.12, 31,190.60 and 12,530.60 is: 17,291.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,603.12 : 31,190.60 = 12,530.60 : x
  2. Step 2: Convert to fraction form
    22,603.12/31,190.60 = 12,530.60/x
  3. Step 3: Cross multiply
    22,603.12x = 31,190.60 × 12,530.60
  4. Step 4: Simplify right side
    22,603.12x = 390,836,932.36
  5. Step 5: Solve for x
    x = 390,836,932.36/22,603.12
  6. Step 6: Final answer
    x = 17,291.28

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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.