Home / 40,485.47-55,873.90-30,258.71

Finding the Fourth Proportional to 40,485.47, 55,873.90 and 30,258.71

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Solution

The fourth proportional to 40,485.47, 55,873.90 and 30,258.71 is: 41,759.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,485.47 : 55,873.90 = 30,258.71 : x
  2. Step 2: Convert to fraction form
    40,485.47/55,873.90 = 30,258.71/x
  3. Step 3: Cross multiply
    40,485.47x = 55,873.90 × 30,258.71
  4. Step 4: Simplify right side
    40,485.47x = 1,690,672,418.94
  5. Step 5: Solve for x
    x = 1,690,672,418.94/40,485.47
  6. Step 6: Final answer
    x = 41,759.98

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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.