Home / 31,612.75-47,425.27-9,425.64

Finding the Fourth Proportional to 31,612.75, 47,425.27 and 9,425.64

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Solution

The fourth proportional to 31,612.75, 47,425.27 and 9,425.64 is: 14,140.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,612.75 : 47,425.27 = 9,425.64 : x
  2. Step 2: Convert to fraction form
    31,612.75/47,425.27 = 9,425.64/x
  3. Step 3: Cross multiply
    31,612.75x = 47,425.27 × 9,425.64
  4. Step 4: Simplify right side
    31,612.75x = 447,013,521.92
  5. Step 5: Solve for x
    x = 447,013,521.92/31,612.75
  6. Step 6: Final answer
    x = 14,140.29

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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.