Home / 21,495.23-29,672.61-20,150.18

Finding the Fourth Proportional to 21,495.23, 29,672.61 and 20,150.18

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Solution

The fourth proportional to 21,495.23, 29,672.61 and 20,150.18 is: 27,815.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,495.23 : 29,672.61 = 20,150.18 : x
  2. Step 2: Convert to fraction form
    21,495.23/29,672.61 = 20,150.18/x
  3. Step 3: Cross multiply
    21,495.23x = 29,672.61 × 20,150.18
  4. Step 4: Simplify right side
    21,495.23x = 597,908,432.57
  5. Step 5: Solve for x
    x = 597,908,432.57/21,495.23
  6. Step 6: Final answer
    x = 27,815.87

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1.5x scale

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.