Home / 40,479.68-55,869.21-25,385.40

Finding the Fourth Proportional to 40,479.68, 55,869.21 and 25,385.40

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Solution

The fourth proportional to 40,479.68, 55,869.21 and 25,385.40 is: 35,036.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,479.68 : 55,869.21 = 25,385.40 : x
  2. Step 2: Convert to fraction form
    40,479.68/55,869.21 = 25,385.40/x
  3. Step 3: Cross multiply
    40,479.68x = 55,869.21 × 25,385.40
  4. Step 4: Simplify right side
    40,479.68x = 1,418,262,243.53
  5. Step 5: Solve for x
    x = 1,418,262,243.53/40,479.68
  6. Step 6: Final answer
    x = 35,036.40

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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.