Home / 39,959.40-55,134.36-25,612.68

Finding the Fourth Proportional to 39,959.40, 55,134.36 and 25,612.68

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Solution

The fourth proportional to 39,959.40, 55,134.36 and 25,612.68 is: 35,339.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,959.40 : 55,134.36 = 25,612.68 : x
  2. Step 2: Convert to fraction form
    39,959.40/55,134.36 = 25,612.68/x
  3. Step 3: Cross multiply
    39,959.40x = 55,134.36 × 25,612.68
  4. Step 4: Simplify right side
    39,959.40x = 1,412,138,719.68
  5. Step 5: Solve for x
    x = 1,412,138,719.68/39,959.40
  6. Step 6: Final answer
    x = 35,339.34

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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.