Home / 22,639.02-31,240.92-12,567.90

Finding the Fourth Proportional to 22,639.02, 31,240.92 and 12,567.90

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Solution

The fourth proportional to 22,639.02, 31,240.92 and 12,567.90 is: 17,343.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,639.02 : 31,240.92 = 12,567.90 : x
  2. Step 2: Convert to fraction form
    22,639.02/31,240.92 = 12,567.90/x
  3. Step 3: Cross multiply
    22,639.02x = 31,240.92 × 12,567.90
  4. Step 4: Simplify right side
    22,639.02x = 392,632,758.47
  5. Step 5: Solve for x
    x = 392,632,758.47/22,639.02
  6. Step 6: Final answer
    x = 17,343.19

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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.