Home / 28,503.96-42,732.87-11,876.49

Finding the Fourth Proportional to 28,503.96, 42,732.87 and 11,876.49

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Solution

The fourth proportional to 28,503.96, 42,732.87 and 11,876.49 is: 17,805.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,503.96 : 42,732.87 = 11,876.49 : x
  2. Step 2: Convert to fraction form
    28,503.96/42,732.87 = 11,876.49/x
  3. Step 3: Cross multiply
    28,503.96x = 42,732.87 × 11,876.49
  4. Step 4: Simplify right side
    28,503.96x = 507,516,503.23
  5. Step 5: Solve for x
    x = 507,516,503.23/28,503.96
  6. Step 6: Final answer
    x = 17,805.12

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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.