Home / 27,815.70-38,385.41-15,068.59

Finding the Fourth Proportional to 27,815.70, 38,385.41 and 15,068.59

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Solution

The fourth proportional to 27,815.70, 38,385.41 and 15,068.59 is: 20,794.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,815.70 : 38,385.41 = 15,068.59 : x
  2. Step 2: Convert to fraction form
    27,815.70/38,385.41 = 15,068.59/x
  3. Step 3: Cross multiply
    27,815.70x = 38,385.41 × 15,068.59
  4. Step 4: Simplify right side
    27,815.70x = 578,414,005.27
  5. Step 5: Solve for x
    x = 578,414,005.27/27,815.70
  6. Step 6: Final answer
    x = 20,794.52

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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.