Home / 19,983.54-29,952.52-12,490.54

Finding the Fourth Proportional to 19,983.54, 29,952.52 and 12,490.54

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Solution

The fourth proportional to 19,983.54, 29,952.52 and 12,490.54 is: 18,721.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,983.54 : 29,952.52 = 12,490.54 : x
  2. Step 2: Convert to fraction form
    19,983.54/29,952.52 = 12,490.54/x
  3. Step 3: Cross multiply
    19,983.54x = 29,952.52 × 12,490.54
  4. Step 4: Simplify right side
    19,983.54x = 374,123,149.16
  5. Step 5: Solve for x
    x = 374,123,149.16/19,983.54
  6. Step 6: Final answer
    x = 18,721.57

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1.5x scale

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.