Home / 18,968.68-26,149.57-14,928.50

Finding the Fourth Proportional to 18,968.68, 26,149.57 and 14,928.50

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Solution

The fourth proportional to 18,968.68, 26,149.57 and 14,928.50 is: 20,579.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,968.68 : 26,149.57 = 14,928.50 : x
  2. Step 2: Convert to fraction form
    18,968.68/26,149.57 = 14,928.50/x
  3. Step 3: Cross multiply
    18,968.68x = 26,149.57 × 14,928.50
  4. Step 4: Simplify right side
    18,968.68x = 390,373,781.10
  5. Step 5: Solve for x
    x = 390,373,781.10/18,968.68
  6. Step 6: Final answer
    x = 20,579.92

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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.