Home / 40,421.80-60,632.70-31,997.80

Finding the Fourth Proportional to 40,421.80, 60,632.70 and 31,997.80

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Solution

The fourth proportional to 40,421.80, 60,632.70 and 31,997.80 is: 47,996.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,421.80 : 60,632.70 = 31,997.80 : x
  2. Step 2: Convert to fraction form
    40,421.80/60,632.70 = 31,997.80/x
  3. Step 3: Cross multiply
    40,421.80x = 60,632.70 × 31,997.80
  4. Step 4: Simplify right side
    40,421.80x = 1,940,113,008.06
  5. Step 5: Solve for x
    x = 1,940,113,008.06/40,421.80
  6. Step 6: Final answer
    x = 47,996.70

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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.