Home / 38,732.50-53,454.09-21,968.74

Finding the Fourth Proportional to 38,732.50, 53,454.09 and 21,968.74

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Solution

The fourth proportional to 38,732.50, 53,454.09 and 21,968.74 is: 30,318.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,732.50 : 53,454.09 = 21,968.74 : x
  2. Step 2: Convert to fraction form
    38,732.50/53,454.09 = 21,968.74/x
  3. Step 3: Cross multiply
    38,732.50x = 53,454.09 × 21,968.74
  4. Step 4: Simplify right side
    38,732.50x = 1,174,319,005.15
  5. Step 5: Solve for x
    x = 1,174,319,005.15/38,732.50
  6. Step 6: Final answer
    x = 30,318.70

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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.