Home / 51,591.47-77,387.33-21,990.42

Finding the Fourth Proportional to 51,591.47, 77,387.33 and 21,990.42

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Solution

The fourth proportional to 51,591.47, 77,387.33 and 21,990.42 is: 32,985.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,591.47 : 77,387.33 = 21,990.42 : x
  2. Step 2: Convert to fraction form
    51,591.47/77,387.33 = 21,990.42/x
  3. Step 3: Cross multiply
    51,591.47x = 77,387.33 × 21,990.42
  4. Step 4: Simplify right side
    51,591.47x = 1,701,779,944.35
  5. Step 5: Solve for x
    x = 1,701,779,944.35/51,591.47
  6. Step 6: Final answer
    x = 32,985.69

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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.