Home / 27,738.04-38,266.98-20,167.72

Finding the Fourth Proportional to 27,738.04, 38,266.98 and 20,167.72

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Solution

The fourth proportional to 27,738.04, 38,266.98 and 20,167.72 is: 27,823.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,738.04 : 38,266.98 = 20,167.72 : x
  2. Step 2: Convert to fraction form
    27,738.04/38,266.98 = 20,167.72/x
  3. Step 3: Cross multiply
    27,738.04x = 38,266.98 × 20,167.72
  4. Step 4: Simplify right side
    27,738.04x = 771,757,737.89
  5. Step 5: Solve for x
    x = 771,757,737.89/27,738.04
  6. Step 6: Final answer
    x = 27,823.08

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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.