Home / 25,340.60-37,981.71-13,629.21

Finding the Fourth Proportional to 25,340.60, 37,981.71 and 13,629.21

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Solution

The fourth proportional to 25,340.60, 37,981.71 and 13,629.21 is: 20,428.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,340.60 : 37,981.71 = 13,629.21 : x
  2. Step 2: Convert to fraction form
    25,340.60/37,981.71 = 13,629.21/x
  3. Step 3: Cross multiply
    25,340.60x = 37,981.71 × 13,629.21
  4. Step 4: Simplify right side
    25,340.60x = 517,660,701.75
  5. Step 5: Solve for x
    x = 517,660,701.75/25,340.60
  6. Step 6: Final answer
    x = 20,428.12

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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.