Home / 20,230.90-30,346.35-20,101.30

Finding the Fourth Proportional to 20,230.90, 30,346.35 and 20,101.30

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Solution

The fourth proportional to 20,230.90, 30,346.35 and 20,101.30 is: 30,151.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,230.90 : 30,346.35 = 20,101.30 : x
  2. Step 2: Convert to fraction form
    20,230.90/30,346.35 = 20,101.30/x
  3. Step 3: Cross multiply
    20,230.90x = 30,346.35 × 20,101.30
  4. Step 4: Simplify right side
    20,230.90x = 610,001,085.26
  5. Step 5: Solve for x
    x = 610,001,085.26/20,230.90
  6. Step 6: Final answer
    x = 30,151.95

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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.