Home / 25,145.70-37,718.55-21,387.30

Finding the Fourth Proportional to 25,145.70, 37,718.55 and 21,387.30

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Solution

The fourth proportional to 25,145.70, 37,718.55 and 21,387.30 is: 32,080.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,145.70 : 37,718.55 = 21,387.30 : x
  2. Step 2: Convert to fraction form
    25,145.70/37,718.55 = 21,387.30/x
  3. Step 3: Cross multiply
    25,145.70x = 37,718.55 × 21,387.30
  4. Step 4: Simplify right side
    25,145.70x = 806,697,944.42
  5. Step 5: Solve for x
    x = 806,697,944.42/25,145.70
  6. Step 6: Final answer
    x = 32,080.95

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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.