Home / 25,338.40-38,013.80-17,856.56

Finding the Fourth Proportional to 25,338.40, 38,013.80 and 17,856.56

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Solution

The fourth proportional to 25,338.40, 38,013.80 and 17,856.56 is: 26,789.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,338.40 : 38,013.80 = 17,856.56 : x
  2. Step 2: Convert to fraction form
    25,338.40/38,013.80 = 17,856.56/x
  3. Step 3: Cross multiply
    25,338.40x = 38,013.80 × 17,856.56
  4. Step 4: Simplify right side
    25,338.40x = 678,795,421.18
  5. Step 5: Solve for x
    x = 678,795,421.18/25,338.40
  6. Step 6: Final answer
    x = 26,789.20

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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.