Home / 31,561.98-47,372.16-15,990.54

Finding the Fourth Proportional to 31,561.98, 47,372.16 and 15,990.54

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Solution

The fourth proportional to 31,561.98, 47,372.16 and 15,990.54 is: 24,000.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,561.98 : 47,372.16 = 15,990.54 : x
  2. Step 2: Convert to fraction form
    31,561.98/47,372.16 = 15,990.54/x
  3. Step 3: Cross multiply
    31,561.98x = 47,372.16 × 15,990.54
  4. Step 4: Simplify right side
    31,561.98x = 757,506,419.37
  5. Step 5: Solve for x
    x = 757,506,419.37/31,561.98
  6. Step 6: Final answer
    x = 24,000.60

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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.