Home / 25,102.68-34,621.56-21,338.28

Finding the Fourth Proportional to 25,102.68, 34,621.56 and 21,338.28

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Solution

The fourth proportional to 25,102.68, 34,621.56 and 21,338.28 is: 29,429.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,102.68 : 34,621.56 = 21,338.28 : x
  2. Step 2: Convert to fraction form
    25,102.68/34,621.56 = 21,338.28/x
  3. Step 3: Cross multiply
    25,102.68x = 34,621.56 × 21,338.28
  4. Step 4: Simplify right side
    25,102.68x = 738,764,541.32
  5. Step 5: Solve for x
    x = 738,764,541.32/25,102.68
  6. Step 6: Final answer
    x = 29,429.71

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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.