Home / 18,387.60-27,595.32-13,470.02

Finding the Fourth Proportional to 18,387.60, 27,595.32 and 13,470.02

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Solution

The fourth proportional to 18,387.60, 27,595.32 and 13,470.02 is: 20,215.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,387.60 : 27,595.32 = 13,470.02 : x
  2. Step 2: Convert to fraction form
    18,387.60/27,595.32 = 13,470.02/x
  3. Step 3: Cross multiply
    18,387.60x = 27,595.32 × 13,470.02
  4. Step 4: Simplify right side
    18,387.60x = 371,709,512.31
  5. Step 5: Solve for x
    x = 371,709,512.31/18,387.60
  6. Step 6: Final answer
    x = 20,215.23

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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.