Home / 22,639.39-31,242.22-12,569.29

Finding the Fourth Proportional to 22,639.39, 31,242.22 and 12,569.29

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Solution

The fourth proportional to 22,639.39, 31,242.22 and 12,569.29 is: 17,345.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,639.39 : 31,242.22 = 12,569.29 : x
  2. Step 2: Convert to fraction form
    22,639.39/31,242.22 = 12,569.29/x
  3. Step 3: Cross multiply
    22,639.39x = 31,242.22 × 12,569.29
  4. Step 4: Simplify right side
    22,639.39x = 392,692,523.42
  5. Step 5: Solve for x
    x = 392,692,523.42/22,639.39
  6. Step 6: Final answer
    x = 17,345.54

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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.