Home / 21,010.50-28,945.17-14,626.08

Finding the Fourth Proportional to 21,010.50, 28,945.17 and 14,626.08

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Solution

The fourth proportional to 21,010.50, 28,945.17 and 14,626.08 is: 20,149.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,010.50 : 28,945.17 = 14,626.08 : x
  2. Step 2: Convert to fraction form
    21,010.50/28,945.17 = 14,626.08/x
  3. Step 3: Cross multiply
    21,010.50x = 28,945.17 × 14,626.08
  4. Step 4: Simplify right side
    21,010.50x = 423,354,372.03
  5. Step 5: Solve for x
    x = 423,354,372.03/21,010.50
  6. Step 6: Final answer
    x = 20,149.66

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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.