Home / 31,865.40-47,798.91-17,817.57

Finding the Fourth Proportional to 31,865.40, 47,798.91 and 17,817.57

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Solution

The fourth proportional to 31,865.40, 47,798.91 and 17,817.57 is: 26,726.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,865.40 : 47,798.91 = 17,817.57 : x
  2. Step 2: Convert to fraction form
    31,865.40/47,798.91 = 17,817.57/x
  3. Step 3: Cross multiply
    31,865.40x = 47,798.91 × 17,817.57
  4. Step 4: Simplify right side
    31,865.40x = 851,660,424.85
  5. Step 5: Solve for x
    x = 851,660,424.85/31,865.40
  6. Step 6: Final answer
    x = 26,726.81

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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.