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Finding the Fourth Proportional to 58,329.86, 87,508.74 and 18,887

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Solution

The fourth proportional to 58,329.86, 87,508.74 and 18,887 is: 28,335.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,329.86 : 87,508.74 = 18,887 : x
  2. Step 2: Convert to fraction form
    58,329.86/87,508.74 = 18,887/x
  3. Step 3: Cross multiply
    58,329.86x = 87,508.74 × 18,887
  4. Step 4: Simplify right side
    58,329.86x = 1,652,777,572.38
  5. Step 5: Solve for x
    x = 1,652,777,572.38/58,329.86
  6. Step 6: Final answer
    x = 28,335.02

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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.