Home / 20,073.52-27,690.30-15,808.87

Finding the Fourth Proportional to 20,073.52, 27,690.30 and 15,808.87

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Solution

The fourth proportional to 20,073.52, 27,690.30 and 15,808.87 is: 21,807.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,073.52 : 27,690.30 = 15,808.87 : x
  2. Step 2: Convert to fraction form
    20,073.52/27,690.30 = 15,808.87/x
  3. Step 3: Cross multiply
    20,073.52x = 27,690.30 × 15,808.87
  4. Step 4: Simplify right side
    20,073.52x = 437,752,387.57
  5. Step 5: Solve for x
    x = 437,752,387.57/20,073.52
  6. Step 6: Final answer
    x = 21,807.45

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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.