Home / 40,474.88-55,862.46-30,899.06

Finding the Fourth Proportional to 40,474.88, 55,862.46 and 30,899.06

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Solution

The fourth proportional to 40,474.88, 55,862.46 and 30,899.06 is: 42,646.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,474.88 : 55,862.46 = 30,899.06 : x
  2. Step 2: Convert to fraction form
    40,474.88/55,862.46 = 30,899.06/x
  3. Step 3: Cross multiply
    40,474.88x = 55,862.46 × 30,899.06
  4. Step 4: Simplify right side
    40,474.88x = 1,726,097,503.29
  5. Step 5: Solve for x
    x = 1,726,097,503.29/40,474.88
  6. Step 6: Final answer
    x = 42,646.14

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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.