Home / 28,027.68-41,981.20-13,214.40

Finding the Fourth Proportional to 28,027.68, 41,981.20 and 13,214.40

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Solution

The fourth proportional to 28,027.68, 41,981.20 and 13,214.40 is: 19,793.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,027.68 : 41,981.20 = 13,214.40 : x
  2. Step 2: Convert to fraction form
    28,027.68/41,981.20 = 13,214.40/x
  3. Step 3: Cross multiply
    28,027.68x = 41,981.20 × 13,214.40
  4. Step 4: Simplify right side
    28,027.68x = 554,756,369.28
  5. Step 5: Solve for x
    x = 554,756,369.28/28,027.68
  6. Step 6: Final answer
    x = 19,793.16

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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.