Home / 38,737.80-53,455.98-21,740.46

Finding the Fourth Proportional to 38,737.80, 53,455.98 and 21,740.46

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Solution

The fourth proportional to 38,737.80, 53,455.98 and 21,740.46 is: 30,000.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,737.80 : 53,455.98 = 21,740.46 : x
  2. Step 2: Convert to fraction form
    38,737.80/53,455.98 = 21,740.46/x
  3. Step 3: Cross multiply
    38,737.80x = 53,455.98 × 21,740.46
  4. Step 4: Simplify right side
    38,737.80x = 1,162,157,594.95
  5. Step 5: Solve for x
    x = 1,162,157,594.95/38,737.80
  6. Step 6: Final answer
    x = 30,000.61

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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.