Home / 16,981.06-25,357.17-13,867.14

Finding the Fourth Proportional to 16,981.06, 25,357.17 and 13,867.14

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Solution

The fourth proportional to 16,981.06, 25,357.17 and 13,867.14 is: 20,707.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,981.06 : 25,357.17 = 13,867.14 : x
  2. Step 2: Convert to fraction form
    16,981.06/25,357.17 = 13,867.14/x
  3. Step 3: Cross multiply
    16,981.06x = 25,357.17 × 13,867.14
  4. Step 4: Simplify right side
    16,981.06x = 351,631,426.39
  5. Step 5: Solve for x
    x = 351,631,426.39/16,981.06
  6. Step 6: Final answer
    x = 20,707.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.