Home / 27,821.81-38,392.85-15,246.29

Finding the Fourth Proportional to 27,821.81, 38,392.85 and 15,246.29

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Solution

The fourth proportional to 27,821.81, 38,392.85 and 15,246.29 is: 21,039.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,821.81 : 38,392.85 = 15,246.29 : x
  2. Step 2: Convert to fraction form
    27,821.81/38,392.85 = 15,246.29/x
  3. Step 3: Cross multiply
    27,821.81x = 38,392.85 × 15,246.29
  4. Step 4: Simplify right side
    27,821.81x = 585,348,448.80
  5. Step 5: Solve for x
    x = 585,348,448.80/27,821.81
  6. Step 6: Final answer
    x = 21,039.19

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Similar ratio
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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.