Home / 27,689.02-38,208.57-15,590.61

Finding the Fourth Proportional to 27,689.02, 38,208.57 and 15,590.61

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Solution

The fourth proportional to 27,689.02, 38,208.57 and 15,590.61 is: 21,513.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,689.02 : 38,208.57 = 15,590.61 : x
  2. Step 2: Convert to fraction form
    27,689.02/38,208.57 = 15,590.61/x
  3. Step 3: Cross multiply
    27,689.02x = 38,208.57 × 15,590.61
  4. Step 4: Simplify right side
    27,689.02x = 595,694,794.37
  5. Step 5: Solve for x
    x = 595,694,794.37/27,689.02
  6. Step 6: Final answer
    x = 21,513.75

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Half scale
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Double scale
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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.