Home / 31,350.12-47,002.23-11,628.78

Finding the Fourth Proportional to 31,350.12, 47,002.23 and 11,628.78

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Solution

The fourth proportional to 31,350.12, 47,002.23 and 11,628.78 is: 17,434.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,350.12 : 47,002.23 = 11,628.78 : x
  2. Step 2: Convert to fraction form
    31,350.12/47,002.23 = 11,628.78/x
  3. Step 3: Cross multiply
    31,350.12x = 47,002.23 × 11,628.78
  4. Step 4: Simplify right side
    31,350.12x = 546,578,592.18
  5. Step 5: Solve for x
    x = 546,578,592.18/31,350.12
  6. Step 6: Final answer
    x = 17,434.66

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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.