Home / 28,248.27-42,372.65-7,188.33

Finding the Fourth Proportional to 28,248.27, 42,372.65 and 7,188.33

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Solution

The fourth proportional to 28,248.27, 42,372.65 and 7,188.33 is: 10,782.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,248.27 : 42,372.65 = 7,188.33 : x
  2. Step 2: Convert to fraction form
    28,248.27/42,372.65 = 7,188.33/x
  3. Step 3: Cross multiply
    28,248.27x = 42,372.65 × 7,188.33
  4. Step 4: Simplify right side
    28,248.27x = 304,588,591.17
  5. Step 5: Solve for x
    x = 304,588,591.17/28,248.27
  6. Step 6: Final answer
    x = 10,782.56

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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.