Home / 43,490.28-65,235.42-20,113.68

Finding the Fourth Proportional to 43,490.28, 65,235.42 and 20,113.68

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Solution

The fourth proportional to 43,490.28, 65,235.42 and 20,113.68 is: 30,170.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,490.28 : 65,235.42 = 20,113.68 : x
  2. Step 2: Convert to fraction form
    43,490.28/65,235.42 = 20,113.68/x
  3. Step 3: Cross multiply
    43,490.28x = 65,235.42 × 20,113.68
  4. Step 4: Simplify right side
    43,490.28x = 1,312,124,362.55
  5. Step 5: Solve for x
    x = 1,312,124,362.55/43,490.28
  6. Step 6: Final answer
    x = 30,170.52

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Similar ratio
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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.