Home / 40,286.70-60,430.20-13,632.90

Finding the Fourth Proportional to 40,286.70, 60,430.20 and 13,632.90

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Solution

The fourth proportional to 40,286.70, 60,430.20 and 13,632.90 is: 20,449.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,286.70 : 60,430.20 = 13,632.90 : x
  2. Step 2: Convert to fraction form
    40,286.70/60,430.20 = 13,632.90/x
  3. Step 3: Cross multiply
    40,286.70x = 60,430.20 × 13,632.90
  4. Step 4: Simplify right side
    40,286.70x = 823,838,873.58
  5. Step 5: Solve for x
    x = 823,838,873.58/40,286.70
  6. Step 6: Final answer
    x = 20,449.40

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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.