Home / 27,881.98-38,476.48-15,135.18

Finding the Fourth Proportional to 27,881.98, 38,476.48 and 15,135.18

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Solution

The fourth proportional to 27,881.98, 38,476.48 and 15,135.18 is: 20,886.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,881.98 : 38,476.48 = 15,135.18 : x
  2. Step 2: Convert to fraction form
    27,881.98/38,476.48 = 15,135.18/x
  3. Step 3: Cross multiply
    27,881.98x = 38,476.48 × 15,135.18
  4. Step 4: Simplify right side
    27,881.98x = 582,348,450.57
  5. Step 5: Solve for x
    x = 582,348,450.57/27,881.98
  6. Step 6: Final answer
    x = 20,886.19

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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.