Home / 20,643.90-30,965.85-5,061.39

Finding the Fourth Proportional to 20,643.90, 30,965.85 and 5,061.39

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Solution

The fourth proportional to 20,643.90, 30,965.85 and 5,061.39 is: 7,592.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,643.90 : 30,965.85 = 5,061.39 : x
  2. Step 2: Convert to fraction form
    20,643.90/30,965.85 = 5,061.39/x
  3. Step 3: Cross multiply
    20,643.90x = 30,965.85 × 5,061.39
  4. Step 4: Simplify right side
    20,643.90x = 156,730,243.53
  5. Step 5: Solve for x
    x = 156,730,243.53/20,643.90
  6. Step 6: Final answer
    x = 7,592.09

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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.