Home / 25,338.42-34,979.49-15,912.18

Finding the Fourth Proportional to 25,338.42, 34,979.49 and 15,912.18

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Solution

The fourth proportional to 25,338.42, 34,979.49 and 15,912.18 is: 21,966.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,338.42 : 34,979.49 = 15,912.18 : x
  2. Step 2: Convert to fraction form
    25,338.42/34,979.49 = 15,912.18/x
  3. Step 3: Cross multiply
    25,338.42x = 34,979.49 × 15,912.18
  4. Step 4: Simplify right side
    25,338.42x = 556,599,941.19
  5. Step 5: Solve for x
    x = 556,599,941.19/25,338.42
  6. Step 6: Final answer
    x = 21,966.64

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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.