Home / 40,421.04-55,816.32-25,339.68

Finding the Fourth Proportional to 40,421.04, 55,816.32 and 25,339.68

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Solution

The fourth proportional to 40,421.04, 55,816.32 and 25,339.68 is: 34,990.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,421.04 : 55,816.32 = 25,339.68 : x
  2. Step 2: Convert to fraction form
    40,421.04/55,816.32 = 25,339.68/x
  3. Step 3: Cross multiply
    40,421.04x = 55,816.32 × 25,339.68
  4. Step 4: Simplify right side
    40,421.04x = 1,414,367,687.58
  5. Step 5: Solve for x
    x = 1,414,367,687.58/40,421.04
  6. Step 6: Final answer
    x = 34,990.88

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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.