Home / 31,774.32-47,623.92-13,042.80

Finding the Fourth Proportional to 31,774.32, 47,623.92 and 13,042.80

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Solution

The fourth proportional to 31,774.32, 47,623.92 and 13,042.80 is: 19,548.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,774.32 : 47,623.92 = 13,042.80 : x
  2. Step 2: Convert to fraction form
    31,774.32/47,623.92 = 13,042.80/x
  3. Step 3: Cross multiply
    31,774.32x = 47,623.92 × 13,042.80
  4. Step 4: Simplify right side
    31,774.32x = 621,149,263.78
  5. Step 5: Solve for x
    x = 621,149,263.78/31,774.32
  6. Step 6: Final answer
    x = 19,548.78

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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.