Home / 27,813.60-38,382.12-15,238.08

Finding the Fourth Proportional to 27,813.60, 38,382.12 and 15,238.08

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Solution

The fourth proportional to 27,813.60, 38,382.12 and 15,238.08 is: 21,028.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,813.60 : 38,382.12 = 15,238.08 : x
  2. Step 2: Convert to fraction form
    27,813.60/38,382.12 = 15,238.08/x
  3. Step 3: Cross multiply
    27,813.60x = 38,382.12 × 15,238.08
  4. Step 4: Simplify right side
    27,813.60x = 584,869,815.13
  5. Step 5: Solve for x
    x = 584,869,815.13/27,813.60
  6. Step 6: Final answer
    x = 21,028.20

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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.