Home / 31,764.20-47,549.10-18,577.40

Finding the Fourth Proportional to 31,764.20, 47,549.10 and 18,577.40

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Solution

The fourth proportional to 31,764.20, 47,549.10 and 18,577.40 is: 27,809.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,764.20 : 47,549.10 = 18,577.40 : x
  2. Step 2: Convert to fraction form
    31,764.20/47,549.10 = 18,577.40/x
  3. Step 3: Cross multiply
    31,764.20x = 47,549.10 × 18,577.40
  4. Step 4: Simplify right side
    31,764.20x = 883,338,650.34
  5. Step 5: Solve for x
    x = 883,338,650.34/31,764.20
  6. Step 6: Final answer
    x = 27,809.25

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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.