Home / 18,701.92-28,026.15-13,732.57

Finding the Fourth Proportional to 18,701.92, 28,026.15 and 13,732.57

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Solution

The fourth proportional to 18,701.92, 28,026.15 and 13,732.57 is: 20,579.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,701.92 : 28,026.15 = 13,732.57 : x
  2. Step 2: Convert to fraction form
    18,701.92/28,026.15 = 13,732.57/x
  3. Step 3: Cross multiply
    18,701.92x = 28,026.15 × 13,732.57
  4. Step 4: Simplify right side
    18,701.92x = 384,871,066.71
  5. Step 5: Solve for x
    x = 384,871,066.71/18,701.92
  6. Step 6: Final answer
    x = 20,579.23

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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.