Home / 27,890.43-38,523.11-20,848.29

Finding the Fourth Proportional to 27,890.43, 38,523.11 and 20,848.29

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Solution

The fourth proportional to 27,890.43, 38,523.11 and 20,848.29 is: 28,796.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,890.43 : 38,523.11 = 20,848.29 : x
  2. Step 2: Convert to fraction form
    27,890.43/38,523.11 = 20,848.29/x
  3. Step 3: Cross multiply
    27,890.43x = 38,523.11 × 20,848.29
  4. Step 4: Simplify right side
    27,890.43x = 803,140,864.74
  5. Step 5: Solve for x
    x = 803,140,864.74/27,890.43
  6. Step 6: Final answer
    x = 28,796.29

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Double scale
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Similar ratio
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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.