Home / 21,710.20-32,516.70-18,794.20

Finding the Fourth Proportional to 21,710.20, 32,516.70 and 18,794.20

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Solution

The fourth proportional to 21,710.20, 32,516.70 and 18,794.20 is: 28,149.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,710.20 : 32,516.70 = 18,794.20 : x
  2. Step 2: Convert to fraction form
    21,710.20/32,516.70 = 18,794.20/x
  3. Step 3: Cross multiply
    21,710.20x = 32,516.70 × 18,794.20
  4. Step 4: Simplify right side
    21,710.20x = 611,125,363.14
  5. Step 5: Solve for x
    x = 611,125,363.14/21,710.20
  6. Step 6: Final answer
    x = 28,149.23

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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.