Home / 27,845.98-38,427.51-15,909.28

Finding the Fourth Proportional to 27,845.98, 38,427.51 and 15,909.28

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Solution

The fourth proportional to 27,845.98, 38,427.51 and 15,909.28 is: 21,954.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,845.98 : 38,427.51 = 15,909.28 : x
  2. Step 2: Convert to fraction form
    27,845.98/38,427.51 = 15,909.28/x
  3. Step 3: Cross multiply
    27,845.98x = 38,427.51 × 15,909.28
  4. Step 4: Simplify right side
    27,845.98x = 611,353,979.88
  5. Step 5: Solve for x
    x = 611,353,979.88/27,845.98
  6. Step 6: Final answer
    x = 21,954.84

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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.