Home / 27,883.54-38,479.35-15,309.10

Finding the Fourth Proportional to 27,883.54, 38,479.35 and 15,309.10

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Solution

The fourth proportional to 27,883.54, 38,479.35 and 15,309.10 is: 21,126.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,883.54 : 38,479.35 = 15,309.10 : x
  2. Step 2: Convert to fraction form
    27,883.54/38,479.35 = 15,309.10/x
  3. Step 3: Cross multiply
    27,883.54x = 38,479.35 × 15,309.10
  4. Step 4: Simplify right side
    27,883.54x = 589,084,217.09
  5. Step 5: Solve for x
    x = 589,084,217.09/27,883.54
  6. Step 6: Final answer
    x = 21,126.59

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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.