Home / 40,403.15-60,604.65-18,190.57

Finding the Fourth Proportional to 40,403.15, 60,604.65 and 18,190.57

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Solution

The fourth proportional to 40,403.15, 60,604.65 and 18,190.57 is: 27,285.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,403.15 : 60,604.65 = 18,190.57 : x
  2. Step 2: Convert to fraction form
    40,403.15/60,604.65 = 18,190.57/x
  3. Step 3: Cross multiply
    40,403.15x = 60,604.65 × 18,190.57
  4. Step 4: Simplify right side
    40,403.15x = 1,102,433,128.15
  5. Step 5: Solve for x
    x = 1,102,433,128.15/40,403.15
  6. Step 6: Final answer
    x = 27,285.82

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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.