Home / 31,910.23-47,865.35-14,359.55

Finding the Fourth Proportional to 31,910.23, 47,865.35 and 14,359.55

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Solution

The fourth proportional to 31,910.23, 47,865.35 and 14,359.55 is: 21,539.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,910.23 : 47,865.35 = 14,359.55 : x
  2. Step 2: Convert to fraction form
    31,910.23/47,865.35 = 14,359.55/x
  3. Step 3: Cross multiply
    31,910.23x = 47,865.35 × 14,359.55
  4. Step 4: Simplify right side
    31,910.23x = 687,324,886.59
  5. Step 5: Solve for x
    x = 687,324,886.59/31,910.23
  6. Step 6: Final answer
    x = 21,539.33

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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.