Home / 25,718.88-38,575.74-18,254.28

Finding the Fourth Proportional to 25,718.88, 38,575.74 and 18,254.28

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Solution

The fourth proportional to 25,718.88, 38,575.74 and 18,254.28 is: 27,379.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,718.88 : 38,575.74 = 18,254.28 : x
  2. Step 2: Convert to fraction form
    25,718.88/38,575.74 = 18,254.28/x
  3. Step 3: Cross multiply
    25,718.88x = 38,575.74 × 18,254.28
  4. Step 4: Simplify right side
    25,718.88x = 704,172,359.17
  5. Step 5: Solve for x
    x = 704,172,359.17/25,718.88
  6. Step 6: Final answer
    x = 27,379.59

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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.