Home / 20,840.29-31,251.19-14,972.29

Finding the Fourth Proportional to 20,840.29, 31,251.19 and 14,972.29

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Solution

The fourth proportional to 20,840.29, 31,251.19 and 14,972.29 is: 22,451.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,840.29 : 31,251.19 = 14,972.29 : x
  2. Step 2: Convert to fraction form
    20,840.29/31,251.19 = 14,972.29/x
  3. Step 3: Cross multiply
    20,840.29x = 31,251.19 × 14,972.29
  4. Step 4: Simplify right side
    20,840.29x = 467,902,009.94
  5. Step 5: Solve for x
    x = 467,902,009.94/20,840.29
  6. Step 6: Final answer
    x = 22,451.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.