Home / 40,279.86-60,417.09-12,200.70

Finding the Fourth Proportional to 40,279.86, 60,417.09 and 12,200.70

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Solution

The fourth proportional to 40,279.86, 60,417.09 and 12,200.70 is: 18,300.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,279.86 : 60,417.09 = 12,200.70 : x
  2. Step 2: Convert to fraction form
    40,279.86/60,417.09 = 12,200.70/x
  3. Step 3: Cross multiply
    40,279.86x = 60,417.09 × 12,200.70
  4. Step 4: Simplify right side
    40,279.86x = 737,130,789.96
  5. Step 5: Solve for x
    x = 737,130,789.96/40,279.86
  6. Step 6: Final answer
    x = 18,300.23

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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.