Home / 22,929.81-31,616.13-21,229.43

Finding the Fourth Proportional to 22,929.81, 31,616.13 and 21,229.43

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Solution

The fourth proportional to 22,929.81, 31,616.13 and 21,229.43 is: 29,271.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,929.81 : 31,616.13 = 21,229.43 : x
  2. Step 2: Convert to fraction form
    22,929.81/31,616.13 = 21,229.43/x
  3. Step 3: Cross multiply
    22,929.81x = 31,616.13 × 21,229.43
  4. Step 4: Simplify right side
    22,929.81x = 671,192,260.63
  5. Step 5: Solve for x
    x = 671,192,260.63/22,929.81
  6. Step 6: Final answer
    x = 29,271.60

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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.