Home / 38,662.48-57,988.20-12,363.76

Finding the Fourth Proportional to 38,662.48, 57,988.20 and 12,363.76

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Solution

The fourth proportional to 38,662.48, 57,988.20 and 12,363.76 is: 18,543.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,662.48 : 57,988.20 = 12,363.76 : x
  2. Step 2: Convert to fraction form
    38,662.48/57,988.20 = 12,363.76/x
  3. Step 3: Cross multiply
    38,662.48x = 57,988.20 × 12,363.76
  4. Step 4: Simplify right side
    38,662.48x = 716,952,187.63
  5. Step 5: Solve for x
    x = 716,952,187.63/38,662.48
  6. Step 6: Final answer
    x = 18,543.87

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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.