Home / 27,432.75-37,858.82-15,495.78

Finding the Fourth Proportional to 27,432.75, 37,858.82 and 15,495.78

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Solution

The fourth proportional to 27,432.75, 37,858.82 and 15,495.78 is: 21,385.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,432.75 : 37,858.82 = 15,495.78 : x
  2. Step 2: Convert to fraction form
    27,432.75/37,858.82 = 15,495.78/x
  3. Step 3: Cross multiply
    27,432.75x = 37,858.82 × 15,495.78
  4. Step 4: Simplify right side
    27,432.75x = 586,651,868.30
  5. Step 5: Solve for x
    x = 586,651,868.30/27,432.75
  6. Step 6: Final answer
    x = 21,385.09

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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.