Home / 28,375.55-39,158.25-16,445.81

Finding the Fourth Proportional to 28,375.55, 39,158.25 and 16,445.81

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Solution

The fourth proportional to 28,375.55, 39,158.25 and 16,445.81 is: 22,695.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,375.55 : 39,158.25 = 16,445.81 : x
  2. Step 2: Convert to fraction form
    28,375.55/39,158.25 = 16,445.81/x
  3. Step 3: Cross multiply
    28,375.55x = 39,158.25 × 16,445.81
  4. Step 4: Simplify right side
    28,375.55x = 643,988,943.64
  5. Step 5: Solve for x
    x = 643,988,943.64/28,375.55
  6. Step 6: Final answer
    x = 22,695.21

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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.