Home / 25,790.28-38,696.56-13,952.40

Finding the Fourth Proportional to 25,790.28, 38,696.56 and 13,952.40

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Solution

The fourth proportional to 25,790.28, 38,696.56 and 13,952.40 is: 20,934.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,790.28 : 38,696.56 = 13,952.40 : x
  2. Step 2: Convert to fraction form
    25,790.28/38,696.56 = 13,952.40/x
  3. Step 3: Cross multiply
    25,790.28x = 38,696.56 × 13,952.40
  4. Step 4: Simplify right side
    25,790.28x = 539,909,782.23
  5. Step 5: Solve for x
    x = 539,909,782.23/25,790.28
  6. Step 6: Final answer
    x = 20,934.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.