Home / 27,618.30-38,113.23-15,043.05

Finding the Fourth Proportional to 27,618.30, 38,113.23 and 15,043.05

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Solution

The fourth proportional to 27,618.30, 38,113.23 and 15,043.05 is: 20,759.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,618.30 : 38,113.23 = 15,043.05 : x
  2. Step 2: Convert to fraction form
    27,618.30/38,113.23 = 15,043.05/x
  3. Step 3: Cross multiply
    27,618.30x = 38,113.23 × 15,043.05
  4. Step 4: Simplify right side
    27,618.30x = 573,339,224.55
  5. Step 5: Solve for x
    x = 573,339,224.55/27,618.30
  6. Step 6: Final answer
    x = 20,759.40

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Half 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.