Home / 40,400.64-55,825.20-31,471.20

Finding the Fourth Proportional to 40,400.64, 55,825.20 and 31,471.20

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Solution

The fourth proportional to 40,400.64, 55,825.20 and 31,471.20 is: 43,486.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,400.64 : 55,825.20 = 31,471.20 : x
  2. Step 2: Convert to fraction form
    40,400.64/55,825.20 = 31,471.20/x
  3. Step 3: Cross multiply
    40,400.64x = 55,825.20 × 31,471.20
  4. Step 4: Simplify right side
    40,400.64x = 1,756,886,034.24
  5. Step 5: Solve for x
    x = 1,756,886,034.24/40,400.64
  6. Step 6: Final answer
    x = 43,486.59

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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.