Home / 21,249.60-29,316.80-14,614.08

Finding the Fourth Proportional to 21,249.60, 29,316.80 and 14,614.08

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Solution

The fourth proportional to 21,249.60, 29,316.80 and 14,614.08 is: 20,162.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,249.60 : 29,316.80 = 14,614.08 : x
  2. Step 2: Convert to fraction form
    21,249.60/29,316.80 = 14,614.08/x
  3. Step 3: Cross multiply
    21,249.60x = 29,316.80 × 14,614.08
  4. Step 4: Simplify right side
    21,249.60x = 428,438,060.54
  5. Step 5: Solve for x
    x = 428,438,060.54/21,249.60
  6. Step 6: Final answer
    x = 20,162.17

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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.