Home / 25,400.28-35,069.51-15,854.70

Finding the Fourth Proportional to 25,400.28, 35,069.51 and 15,854.70

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Solution

The fourth proportional to 25,400.28, 35,069.51 and 15,854.70 is: 21,890.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,400.28 : 35,069.51 = 15,854.70 : x
  2. Step 2: Convert to fraction form
    25,400.28/35,069.51 = 15,854.70/x
  3. Step 3: Cross multiply
    25,400.28x = 35,069.51 × 15,854.70
  4. Step 4: Simplify right side
    25,400.28x = 556,016,642.16
  5. Step 5: Solve for x
    x = 556,016,642.16/25,400.28
  6. Step 6: Final answer
    x = 21,890.18

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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.