Home / 25,436.29-35,119.47-15,890.71

Finding the Fourth Proportional to 25,436.29, 35,119.47 and 15,890.71

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Solution

The fourth proportional to 25,436.29, 35,119.47 and 15,890.71 is: 21,940.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,436.29 : 35,119.47 = 15,890.71 : x
  2. Step 2: Convert to fraction form
    25,436.29/35,119.47 = 15,890.71/x
  3. Step 3: Cross multiply
    25,436.29x = 35,119.47 × 15,890.71
  4. Step 4: Simplify right side
    25,436.29x = 558,073,233.67
  5. Step 5: Solve for x
    x = 558,073,233.67/25,436.29
  6. Step 6: Final answer
    x = 21,940.04

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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.