Home / 31,510.80-47,275.38-9,324.72

Finding the Fourth Proportional to 31,510.80, 47,275.38 and 9,324.72

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Solution

The fourth proportional to 31,510.80, 47,275.38 and 9,324.72 is: 13,989.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,510.80 : 47,275.38 = 9,324.72 : x
  2. Step 2: Convert to fraction form
    31,510.80/47,275.38 = 9,324.72/x
  3. Step 3: Cross multiply
    31,510.80x = 47,275.38 × 9,324.72
  4. Step 4: Simplify right side
    31,510.80x = 440,829,681.39
  5. Step 5: Solve for x
    x = 440,829,681.39/31,510.80
  6. Step 6: Final answer
    x = 13,989.80

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1.5x scale

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.