Home / 31,707.75-47,547.30-9,516.79

Finding the Fourth Proportional to 31,707.75, 47,547.30 and 9,516.79

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Solution

The fourth proportional to 31,707.75, 47,547.30 and 9,516.79 is: 14,270.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,707.75 : 47,547.30 = 9,516.79 : x
  2. Step 2: Convert to fraction form
    31,707.75/47,547.30 = 9,516.79/x
  3. Step 3: Cross multiply
    31,707.75x = 47,547.30 × 9,516.79
  4. Step 4: Simplify right side
    31,707.75x = 452,497,764.29
  5. Step 5: Solve for x
    x = 452,497,764.29/31,707.75
  6. Step 6: Final answer
    x = 14,270.89

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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.