Home / 21,537.38-32,278.10-10,428.64

Finding the Fourth Proportional to 21,537.38, 32,278.10 and 10,428.64

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Solution

The fourth proportional to 21,537.38, 32,278.10 and 10,428.64 is: 15,629.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,537.38 : 32,278.10 = 10,428.64 : x
  2. Step 2: Convert to fraction form
    21,537.38/32,278.10 = 10,428.64/x
  3. Step 3: Cross multiply
    21,537.38x = 32,278.10 × 10,428.64
  4. Step 4: Simplify right side
    21,537.38x = 336,616,684.78
  5. Step 5: Solve for x
    x = 336,616,684.78/21,537.38
  6. Step 6: Final answer
    x = 15,629.42

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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.