Home / 18,519.85-25,557.46-10,021.97

Finding the Fourth Proportional to 18,519.85, 25,557.46 and 10,021.97

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Solution

The fourth proportional to 18,519.85, 25,557.46 and 10,021.97 is: 13,830.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,519.85 : 25,557.46 = 10,021.97 : x
  2. Step 2: Convert to fraction form
    18,519.85/25,557.46 = 10,021.97/x
  3. Step 3: Cross multiply
    18,519.85x = 25,557.46 × 10,021.97
  4. Step 4: Simplify right side
    18,519.85x = 256,136,097.40
  5. Step 5: Solve for x
    x = 256,136,097.40/18,519.85
  6. Step 6: Final answer
    x = 13,830.35

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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.