Home / 18,949.01-28,373.80-13,372.13

Finding the Fourth Proportional to 18,949.01, 28,373.80 and 13,372.13

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Solution

The fourth proportional to 18,949.01, 28,373.80 and 13,372.13 is: 20,023.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,949.01 : 28,373.80 = 13,372.13 : x
  2. Step 2: Convert to fraction form
    18,949.01/28,373.80 = 13,372.13/x
  3. Step 3: Cross multiply
    18,949.01x = 28,373.80 × 13,372.13
  4. Step 4: Simplify right side
    18,949.01x = 379,418,075.33
  5. Step 5: Solve for x
    x = 379,418,075.33/18,949.01
  6. Step 6: Final answer
    x = 20,023.11

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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.