Home / 28,171.24-42,227.54-9,437.16

Finding the Fourth Proportional to 28,171.24, 42,227.54 and 9,437.16

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Solution

The fourth proportional to 28,171.24, 42,227.54 and 9,437.16 is: 14,145.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,171.24 : 42,227.54 = 9,437.16 : x
  2. Step 2: Convert to fraction form
    28,171.24/42,227.54 = 9,437.16/x
  3. Step 3: Cross multiply
    28,171.24x = 42,227.54 × 9,437.16
  4. Step 4: Simplify right side
    28,171.24x = 398,508,051.39
  5. Step 5: Solve for x
    x = 398,508,051.39/28,171.24
  6. Step 6: Final answer
    x = 14,145.92

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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.