Home / 35,691.40-53,561.76-12,317.92

Finding the Fourth Proportional to 35,691.40, 53,561.76 and 12,317.92

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Solution

The fourth proportional to 35,691.40, 53,561.76 and 12,317.92 is: 18,485.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,691.40 : 53,561.76 = 12,317.92 : x
  2. Step 2: Convert to fraction form
    35,691.40/53,561.76 = 12,317.92/x
  3. Step 3: Cross multiply
    35,691.40x = 53,561.76 × 12,317.92
  4. Step 4: Simplify right side
    35,691.40x = 659,769,474.74
  5. Step 5: Solve for x
    x = 659,769,474.74/35,691.40
  6. Step 6: Final answer
    x = 18,485.39

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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.