Home / 31,897.40-43,998.80-20,562.66

Finding the Fourth Proportional to 31,897.40, 43,998.80 and 20,562.66

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Solution

The fourth proportional to 31,897.40, 43,998.80 and 20,562.66 is: 28,363.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,897.40 : 43,998.80 = 20,562.66 : x
  2. Step 2: Convert to fraction form
    31,897.40/43,998.80 = 20,562.66/x
  3. Step 3: Cross multiply
    31,897.40x = 43,998.80 × 20,562.66
  4. Step 4: Simplify right side
    31,897.40x = 904,732,261.99
  5. Step 5: Solve for x
    x = 904,732,261.99/31,897.40
  6. Step 6: Final answer
    x = 28,363.83

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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.