Home / 20,386.17-30,575.98-5,591.66

Finding the Fourth Proportional to 20,386.17, 30,575.98 and 5,591.66

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Solution

The fourth proportional to 20,386.17, 30,575.98 and 5,591.66 is: 8,386.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,386.17 : 30,575.98 = 5,591.66 : x
  2. Step 2: Convert to fraction form
    20,386.17/30,575.98 = 5,591.66/x
  3. Step 3: Cross multiply
    20,386.17x = 30,575.98 × 5,591.66
  4. Step 4: Simplify right side
    20,386.17x = 170,970,303.49
  5. Step 5: Solve for x
    x = 170,970,303.49/20,386.17
  6. Step 6: Final answer
    x = 8,386.58

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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.