Home / 18,981.14-26,206.30-16,988.24

Finding the Fourth Proportional to 18,981.14, 26,206.30 and 16,988.24

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Solution

The fourth proportional to 18,981.14, 26,206.30 and 16,988.24 is: 23,454.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,981.14 : 26,206.30 = 16,988.24 : x
  2. Step 2: Convert to fraction form
    18,981.14/26,206.30 = 16,988.24/x
  3. Step 3: Cross multiply
    18,981.14x = 26,206.30 × 16,988.24
  4. Step 4: Simplify right side
    18,981.14x = 445,198,913.91
  5. Step 5: Solve for x
    x = 445,198,913.91/18,981.14
  6. Step 6: Final answer
    x = 23,454.80

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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.