Home / 40,385.72-60,590.97-20,678.12

Finding the Fourth Proportional to 40,385.72, 60,590.97 and 20,678.12

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Solution

The fourth proportional to 40,385.72, 60,590.97 and 20,678.12 is: 31,023.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,385.72 : 60,590.97 = 20,678.12 : x
  2. Step 2: Convert to fraction form
    40,385.72/60,590.97 = 20,678.12/x
  3. Step 3: Cross multiply
    40,385.72x = 60,590.97 × 20,678.12
  4. Step 4: Simplify right side
    40,385.72x = 1,252,907,045.62
  5. Step 5: Solve for x
    x = 1,252,907,045.62/40,385.72
  6. Step 6: Final answer
    x = 31,023.52

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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.