Home / 40,100.08-55,337.24-21,950.78

Finding the Fourth Proportional to 40,100.08, 55,337.24 and 21,950.78

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Solution

The fourth proportional to 40,100.08, 55,337.24 and 21,950.78 is: 30,291.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,100.08 : 55,337.24 = 21,950.78 : x
  2. Step 2: Convert to fraction form
    40,100.08/55,337.24 = 21,950.78/x
  3. Step 3: Cross multiply
    40,100.08x = 55,337.24 × 21,950.78
  4. Step 4: Simplify right side
    40,100.08x = 1,214,695,581.05
  5. Step 5: Solve for x
    x = 1,214,695,581.05/40,100.08
  6. Step 6: Final answer
    x = 30,291.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.