Home / 31,917.14-47,875.76-13,176.61

Finding the Fourth Proportional to 31,917.14, 47,875.76 and 13,176.61

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Solution

The fourth proportional to 31,917.14, 47,875.76 and 13,176.61 is: 19,764.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,917.14 : 47,875.76 = 13,176.61 : x
  2. Step 2: Convert to fraction form
    31,917.14/47,875.76 = 13,176.61/x
  3. Step 3: Cross multiply
    31,917.14x = 47,875.76 × 13,176.61
  4. Step 4: Simplify right side
    31,917.14x = 630,840,081.81
  5. Step 5: Solve for x
    x = 630,840,081.81/31,917.14
  6. Step 6: Final answer
    x = 19,764.93

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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.