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Finding the Fourth Proportional to 25,254.76, 37,900.86 and 20,382.76

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Solution

The fourth proportional to 25,254.76, 37,900.86 and 20,382.76 is: 30,589.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,254.76 : 37,900.86 = 20,382.76 : x
  2. Step 2: Convert to fraction form
    25,254.76/37,900.86 = 20,382.76/x
  3. Step 3: Cross multiply
    25,254.76x = 37,900.86 × 20,382.76
  4. Step 4: Simplify right side
    25,254.76x = 772,524,133.17
  5. Step 5: Solve for x
    x = 772,524,133.17/25,254.76
  6. Step 6: Final answer
    x = 30,589.25

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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.