Home / 22,718.62-31,352.43-12,510.74

Finding the Fourth Proportional to 22,718.62, 31,352.43 and 12,510.74

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Solution

The fourth proportional to 22,718.62, 31,352.43 and 12,510.74 is: 17,265.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,718.62 : 31,352.43 = 12,510.74 : x
  2. Step 2: Convert to fraction form
    22,718.62/31,352.43 = 12,510.74/x
  3. Step 3: Cross multiply
    22,718.62x = 31,352.43 × 12,510.74
  4. Step 4: Simplify right side
    22,718.62x = 392,242,049.04
  5. Step 5: Solve for x
    x = 392,242,049.04/22,718.62
  6. Step 6: Final answer
    x = 17,265.22

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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.