Home / 19,948.64-27,519-15,224.72

Finding the Fourth Proportional to 19,948.64, 27,519 and 15,224.72

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Solution

The fourth proportional to 19,948.64, 27,519 and 15,224.72 is: 21,002.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,948.64 : 27,519 = 15,224.72 : x
  2. Step 2: Convert to fraction form
    19,948.64/27,519 = 15,224.72/x
  3. Step 3: Cross multiply
    19,948.64x = 27,519 × 15,224.72
  4. Step 4: Simplify right side
    19,948.64x = 418,969,069.68
  5. Step 5: Solve for x
    x = 418,969,069.68/19,948.64
  6. Step 6: Final answer
    x = 21,002.39

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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.