Home / 38,031.80-57,016.90-15,861.80

Finding the Fourth Proportional to 38,031.80, 57,016.90 and 15,861.80

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Solution

The fourth proportional to 38,031.80, 57,016.90 and 15,861.80 is: 23,779.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,031.80 : 57,016.90 = 15,861.80 : x
  2. Step 2: Convert to fraction form
    38,031.80/57,016.90 = 15,861.80/x
  3. Step 3: Cross multiply
    38,031.80x = 57,016.90 × 15,861.80
  4. Step 4: Simplify right side
    38,031.80x = 904,390,664.42
  5. Step 5: Solve for x
    x = 904,390,664.42/38,031.80
  6. Step 6: Final answer
    x = 23,779.85

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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.