Home / 31,664.65-47,510.05-13,886.10

Finding the Fourth Proportional to 31,664.65, 47,510.05 and 13,886.10

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Solution

The fourth proportional to 31,664.65, 47,510.05 and 13,886.10 is: 20,834.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,664.65 : 47,510.05 = 13,886.10 : x
  2. Step 2: Convert to fraction form
    31,664.65/47,510.05 = 13,886.10/x
  3. Step 3: Cross multiply
    31,664.65x = 47,510.05 × 13,886.10
  4. Step 4: Simplify right side
    31,664.65x = 659,729,235.87
  5. Step 5: Solve for x
    x = 659,729,235.87/31,664.65
  6. Step 6: Final answer
    x = 20,834.88

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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.