Home / 31,630.32-47,429.36-10,562.78

Finding the Fourth Proportional to 31,630.32, 47,429.36 and 10,562.78

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Solution

The fourth proportional to 31,630.32, 47,429.36 and 10,562.78 is: 15,838.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,630.32 : 47,429.36 = 10,562.78 : x
  2. Step 2: Convert to fraction form
    31,630.32/47,429.36 = 10,562.78/x
  3. Step 3: Cross multiply
    31,630.32x = 47,429.36 × 10,562.78
  4. Step 4: Simplify right side
    31,630.32x = 500,985,895.22
  5. Step 5: Solve for x
    x = 500,985,895.22/31,630.32
  6. Step 6: Final answer
    x = 15,838.79

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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.