Home / 22,963.61-31,690.32-12,892.79

Finding the Fourth Proportional to 22,963.61, 31,690.32 and 12,892.79

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Solution

The fourth proportional to 22,963.61, 31,690.32 and 12,892.79 is: 17,792.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,963.61 : 31,690.32 = 12,892.79 : x
  2. Step 2: Convert to fraction form
    22,963.61/31,690.32 = 12,892.79/x
  3. Step 3: Cross multiply
    22,963.61x = 31,690.32 × 12,892.79
  4. Step 4: Simplify right side
    22,963.61x = 408,576,640.79
  5. Step 5: Solve for x
    x = 408,576,640.79/22,963.61
  6. Step 6: Final answer
    x = 17,792.35

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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.