Home / 25,283.39-34,878.05-15,719.65

Finding the Fourth Proportional to 25,283.39, 34,878.05 and 15,719.65

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Solution

The fourth proportional to 25,283.39, 34,878.05 and 15,719.65 is: 21,685.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,283.39 : 34,878.05 = 15,719.65 : x
  2. Step 2: Convert to fraction form
    25,283.39/34,878.05 = 15,719.65/x
  3. Step 3: Cross multiply
    25,283.39x = 34,878.05 × 15,719.65
  4. Step 4: Simplify right side
    25,283.39x = 548,270,738.68
  5. Step 5: Solve for x
    x = 548,270,738.68/25,283.39
  6. Step 6: Final answer
    x = 21,685.02

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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.