Home / 31,381.80-47,029.98-17,320.88

Finding the Fourth Proportional to 31,381.80, 47,029.98 and 17,320.88

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Solution

The fourth proportional to 31,381.80, 47,029.98 and 17,320.88 is: 25,957.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,381.80 : 47,029.98 = 17,320.88 : x
  2. Step 2: Convert to fraction form
    31,381.80/47,029.98 = 17,320.88/x
  3. Step 3: Cross multiply
    31,381.80x = 47,029.98 × 17,320.88
  4. Step 4: Simplify right side
    31,381.80x = 814,600,639.98
  5. Step 5: Solve for x
    x = 814,600,639.98/31,381.80
  6. Step 6: Final answer
    x = 25,957.74

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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.