Home / 27,951.18-38,546.12-21,567.65

Finding the Fourth Proportional to 27,951.18, 38,546.12 and 21,567.65

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Solution

The fourth proportional to 27,951.18, 38,546.12 and 21,567.65 is: 29,742.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,951.18 : 38,546.12 = 21,567.65 : x
  2. Step 2: Convert to fraction form
    27,951.18/38,546.12 = 21,567.65/x
  3. Step 3: Cross multiply
    27,951.18x = 38,546.12 × 21,567.65
  4. Step 4: Simplify right side
    27,951.18x = 831,348,924.45
  5. Step 5: Solve for x
    x = 831,348,924.45/27,951.18
  6. Step 6: Final answer
    x = 29,742.89

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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.