Home / 31,630.14-47,439.78-10,853.64

Finding the Fourth Proportional to 31,630.14, 47,439.78 and 10,853.64

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Solution

The fourth proportional to 31,630.14, 47,439.78 and 10,853.64 is: 16,278.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,630.14 : 47,439.78 = 10,853.64 : x
  2. Step 2: Convert to fraction form
    31,630.14/47,439.78 = 10,853.64/x
  3. Step 3: Cross multiply
    31,630.14x = 47,439.78 × 10,853.64
  4. Step 4: Simplify right side
    31,630.14x = 514,894,293.80
  5. Step 5: Solve for x
    x = 514,894,293.80/31,630.14
  6. Step 6: Final answer
    x = 16,278.60

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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.