Home / 20,888.28-31,349.16-14,608.08

Finding the Fourth Proportional to 20,888.28, 31,349.16 and 14,608.08

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Solution

The fourth proportional to 20,888.28, 31,349.16 and 14,608.08 is: 21,923.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,888.28 : 31,349.16 = 14,608.08 : x
  2. Step 2: Convert to fraction form
    20,888.28/31,349.16 = 14,608.08/x
  3. Step 3: Cross multiply
    20,888.28x = 31,349.16 × 14,608.08
  4. Step 4: Simplify right side
    20,888.28x = 457,951,037.21
  5. Step 5: Solve for x
    x = 457,951,037.21/20,888.28
  6. Step 6: Final answer
    x = 21,923.83

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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.