Home / 25,272.55-37,861.44-21,139.12

Finding the Fourth Proportional to 25,272.55, 37,861.44 and 21,139.12

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Solution

The fourth proportional to 25,272.55, 37,861.44 and 21,139.12 is: 31,669.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,272.55 : 37,861.44 = 21,139.12 : x
  2. Step 2: Convert to fraction form
    25,272.55/37,861.44 = 21,139.12/x
  3. Step 3: Cross multiply
    25,272.55x = 37,861.44 × 21,139.12
  4. Step 4: Simplify right side
    25,272.55x = 800,357,523.53
  5. Step 5: Solve for x
    x = 800,357,523.53/25,272.55
  6. Step 6: Final answer
    x = 31,669.05

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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.