Home / 20,151.04-30,230.21-6,642.93

Finding the Fourth Proportional to 20,151.04, 30,230.21 and 6,642.93

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Solution

The fourth proportional to 20,151.04, 30,230.21 and 6,642.93 is: 9,965.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,151.04 : 30,230.21 = 6,642.93 : x
  2. Step 2: Convert to fraction form
    20,151.04/30,230.21 = 6,642.93/x
  3. Step 3: Cross multiply
    20,151.04x = 30,230.21 × 6,642.93
  4. Step 4: Simplify right side
    20,151.04x = 200,817,135.70
  5. Step 5: Solve for x
    x = 200,817,135.70/20,151.04
  6. Step 6: Final answer
    x = 9,965.60

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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.