Home / 21,422.58-32,077.98-17,239.74

Finding the Fourth Proportional to 21,422.58, 32,077.98 and 17,239.74

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Solution

The fourth proportional to 21,422.58, 32,077.98 and 17,239.74 is: 25,814.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,422.58 : 32,077.98 = 17,239.74 : x
  2. Step 2: Convert to fraction form
    21,422.58/32,077.98 = 17,239.74/x
  3. Step 3: Cross multiply
    21,422.58x = 32,077.98 × 17,239.74
  4. Step 4: Simplify right side
    21,422.58x = 553,016,034.93
  5. Step 5: Solve for x
    x = 553,016,034.93/21,422.58
  6. Step 6: Final answer
    x = 25,814.63

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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.