Home / 31,423.10-47,132.20-18,267.08

Finding the Fourth Proportional to 31,423.10, 47,132.20 and 18,267.08

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Solution

The fourth proportional to 31,423.10, 47,132.20 and 18,267.08 is: 27,399.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,423.10 : 47,132.20 = 18,267.08 : x
  2. Step 2: Convert to fraction form
    31,423.10/47,132.20 = 18,267.08/x
  3. Step 3: Cross multiply
    31,423.10x = 47,132.20 × 18,267.08
  4. Step 4: Simplify right side
    31,423.10x = 860,967,667.98
  5. Step 5: Solve for x
    x = 860,967,667.98/31,423.10
  6. Step 6: Final answer
    x = 27,399.20

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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.