Home / 27,763.58-38,315.82-15,827.20

Finding the Fourth Proportional to 27,763.58, 38,315.82 and 15,827.20

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Solution

The fourth proportional to 27,763.58, 38,315.82 and 15,827.20 is: 21,842.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,763.58 : 38,315.82 = 15,827.20 : x
  2. Step 2: Convert to fraction form
    27,763.58/38,315.82 = 15,827.20/x
  3. Step 3: Cross multiply
    27,763.58x = 38,315.82 × 15,827.20
  4. Step 4: Simplify right side
    27,763.58x = 606,432,146.30
  5. Step 5: Solve for x
    x = 606,432,146.30/27,763.58
  6. Step 6: Final answer
    x = 21,842.72

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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.