Home / 18,869.95-28,288.32-14,687.11

Finding the Fourth Proportional to 18,869.95, 28,288.32 and 14,687.11

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Solution

The fourth proportional to 18,869.95, 28,288.32 and 14,687.11 is: 22,017.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,869.95 : 28,288.32 = 14,687.11 : x
  2. Step 2: Convert to fraction form
    18,869.95/28,288.32 = 14,687.11/x
  3. Step 3: Cross multiply
    18,869.95x = 28,288.32 × 14,687.11
  4. Step 4: Simplify right side
    18,869.95x = 415,473,667.56
  5. Step 5: Solve for x
    x = 415,473,667.56/18,869.95
  6. Step 6: Final answer
    x = 22,017.74

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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.