Home / 27,908.40-38,513.92-15,333.16

Finding the Fourth Proportional to 27,908.40, 38,513.92 and 15,333.16

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Solution

The fourth proportional to 27,908.40, 38,513.92 and 15,333.16 is: 21,159.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,908.40 : 38,513.92 = 15,333.16 : x
  2. Step 2: Convert to fraction form
    27,908.40/38,513.92 = 15,333.16/x
  3. Step 3: Cross multiply
    27,908.40x = 38,513.92 × 15,333.16
  4. Step 4: Simplify right side
    27,908.40x = 590,540,097.59
  5. Step 5: Solve for x
    x = 590,540,097.59/27,908.40
  6. Step 6: Final answer
    x = 21,159.94

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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.