Home / 38,585.61-57,863.70-13,621.01

Finding the Fourth Proportional to 38,585.61, 57,863.70 and 13,621.01

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Solution

The fourth proportional to 38,585.61, 57,863.70 and 13,621.01 is: 20,426.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,585.61 : 57,863.70 = 13,621.01 : x
  2. Step 2: Convert to fraction form
    38,585.61/57,863.70 = 13,621.01/x
  3. Step 3: Cross multiply
    38,585.61x = 57,863.70 × 13,621.01
  4. Step 4: Simplify right side
    38,585.61x = 788,161,747.02
  5. Step 5: Solve for x
    x = 788,161,747.02/38,585.61
  6. Step 6: Final answer
    x = 20,426.31

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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.