Home / 38,382.95-52,967.67-21,387.12

Finding the Fourth Proportional to 38,382.95, 52,967.67 and 21,387.12

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Solution

The fourth proportional to 38,382.95, 52,967.67 and 21,387.12 is: 29,513.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,382.95 : 52,967.67 = 21,387.12 : x
  2. Step 2: Convert to fraction form
    38,382.95/52,967.67 = 21,387.12/x
  3. Step 3: Cross multiply
    38,382.95x = 52,967.67 × 21,387.12
  4. Step 4: Simplify right side
    38,382.95x = 1,132,825,914.41
  5. Step 5: Solve for x
    x = 1,132,825,914.41/38,382.95
  6. Step 6: Final answer
    x = 29,513.78

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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.