Home / 31,660.35-47,484.72-11,665.50

Finding the Fourth Proportional to 31,660.35, 47,484.72 and 11,665.50

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Solution

The fourth proportional to 31,660.35, 47,484.72 and 11,665.50 is: 17,496.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,660.35 : 47,484.72 = 11,665.50 : x
  2. Step 2: Convert to fraction form
    31,660.35/47,484.72 = 11,665.50/x
  3. Step 3: Cross multiply
    31,660.35x = 47,484.72 × 11,665.50
  4. Step 4: Simplify right side
    31,660.35x = 553,933,001.16
  5. Step 5: Solve for x
    x = 553,933,001.16/31,660.35
  6. Step 6: Final answer
    x = 17,496.11

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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.