Home / 25,818.68-38,724-7,100.12

Finding the Fourth Proportional to 25,818.68, 38,724 and 7,100.12

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Solution

The fourth proportional to 25,818.68, 38,724 and 7,100.12 is: 10,649.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,818.68 : 38,724 = 7,100.12 : x
  2. Step 2: Convert to fraction form
    25,818.68/38,724 = 7,100.12/x
  3. Step 3: Cross multiply
    25,818.68x = 38,724 × 7,100.12
  4. Step 4: Simplify right side
    25,818.68x = 274,945,046.88
  5. Step 5: Solve for x
    x = 274,945,046.88/25,818.68
  6. Step 6: Final answer
    x = 10,649.07

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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.