Home / 28,437.27-39,244.28-15,861.75

Finding the Fourth Proportional to 28,437.27, 39,244.28 and 15,861.75

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Solution

The fourth proportional to 28,437.27, 39,244.28 and 15,861.75 is: 21,889.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,437.27 : 39,244.28 = 15,861.75 : x
  2. Step 2: Convert to fraction form
    28,437.27/39,244.28 = 15,861.75/x
  3. Step 3: Cross multiply
    28,437.27x = 39,244.28 × 15,861.75
  4. Step 4: Simplify right side
    28,437.27x = 622,482,878.98
  5. Step 5: Solve for x
    x = 622,482,878.98/28,437.27
  6. Step 6: Final answer
    x = 21,889.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.