Home / 14,081.10-21,121.65-13,862.40

Finding the Fourth Proportional to 14,081.10, 21,121.65 and 13,862.40

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Solution

The fourth proportional to 14,081.10, 21,121.65 and 13,862.40 is: 20,793.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,081.10 : 21,121.65 = 13,862.40 : x
  2. Step 2: Convert to fraction form
    14,081.10/21,121.65 = 13,862.40/x
  3. Step 3: Cross multiply
    14,081.10x = 21,121.65 × 13,862.40
  4. Step 4: Simplify right side
    14,081.10x = 292,796,760.96
  5. Step 5: Solve for x
    x = 292,796,760.96/14,081.10
  6. Step 6: Final answer
    x = 20,793.60

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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.