Home / 37,281.78-51,436.53-21,147.12

Finding the Fourth Proportional to 37,281.78, 51,436.53 and 21,147.12

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Solution

The fourth proportional to 37,281.78, 51,436.53 and 21,147.12 is: 29,176.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,281.78 : 51,436.53 = 21,147.12 : x
  2. Step 2: Convert to fraction form
    37,281.78/51,436.53 = 21,147.12/x
  3. Step 3: Cross multiply
    37,281.78x = 51,436.53 × 21,147.12
  4. Step 4: Simplify right side
    37,281.78x = 1,087,734,472.29
  5. Step 5: Solve for x
    x = 1,087,734,472.29/37,281.78
  6. Step 6: Final answer
    x = 29,176.03

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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.