Home / 28,239.39-42,372.01-12,233.82

Finding the Fourth Proportional to 28,239.39, 42,372.01 and 12,233.82

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Solution

The fourth proportional to 28,239.39, 42,372.01 and 12,233.82 is: 18,356.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,239.39 : 42,372.01 = 12,233.82 : x
  2. Step 2: Convert to fraction form
    28,239.39/42,372.01 = 12,233.82/x
  3. Step 3: Cross multiply
    28,239.39x = 42,372.01 × 12,233.82
  4. Step 4: Simplify right side
    28,239.39x = 518,371,543.38
  5. Step 5: Solve for x
    x = 518,371,543.38/28,239.39
  6. Step 6: Final answer
    x = 18,356.33

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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.