Home / 22,689.02-31,306.25-13,255.76

Finding the Fourth Proportional to 22,689.02, 31,306.25 and 13,255.76

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Solution

The fourth proportional to 22,689.02, 31,306.25 and 13,255.76 is: 18,290.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,689.02 : 31,306.25 = 13,255.76 : x
  2. Step 2: Convert to fraction form
    22,689.02/31,306.25 = 13,255.76/x
  3. Step 3: Cross multiply
    22,689.02x = 31,306.25 × 13,255.76
  4. Step 4: Simplify right side
    22,689.02x = 414,988,013.11
  5. Step 5: Solve for x
    x = 414,988,013.11/22,689.02
  6. Step 6: Final answer
    x = 18,290.26

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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.