Home / 25,581.68-35,288.56-21,296.36

Finding the Fourth Proportional to 25,581.68, 35,288.56 and 21,296.36

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Solution

The fourth proportional to 25,581.68, 35,288.56 and 21,296.36 is: 29,377.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,581.68 : 35,288.56 = 21,296.36 : x
  2. Step 2: Convert to fraction form
    25,581.68/35,288.56 = 21,296.36/x
  3. Step 3: Cross multiply
    25,581.68x = 35,288.56 × 21,296.36
  4. Step 4: Simplify right side
    25,581.68x = 751,517,877.64
  5. Step 5: Solve for x
    x = 751,517,877.64/25,581.68
  6. Step 6: Final answer
    x = 29,377.19

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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.