Home / 27,885.38-38,482.65-15,310.94

Finding the Fourth Proportional to 27,885.38, 38,482.65 and 15,310.94

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Solution

The fourth proportional to 27,885.38, 38,482.65 and 15,310.94 is: 21,129.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,885.38 : 38,482.65 = 15,310.94 : x
  2. Step 2: Convert to fraction form
    27,885.38/38,482.65 = 15,310.94/x
  3. Step 3: Cross multiply
    27,885.38x = 38,482.65 × 15,310.94
  4. Step 4: Simplify right side
    27,885.38x = 589,205,352.78
  5. Step 5: Solve for x
    x = 589,205,352.78/27,885.38
  6. Step 6: Final answer
    x = 21,129.55

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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.