Home / 27,915.68-38,523.35-15,340.16

Finding the Fourth Proportional to 27,915.68, 38,523.35 and 15,340.16

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Solution

The fourth proportional to 27,915.68, 38,523.35 and 15,340.16 is: 21,169.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,915.68 : 38,523.35 = 15,340.16 : x
  2. Step 2: Convert to fraction form
    27,915.68/38,523.35 = 15,340.16/x
  3. Step 3: Cross multiply
    27,915.68x = 38,523.35 × 15,340.16
  4. Step 4: Simplify right side
    27,915.68x = 590,954,352.74
  5. Step 5: Solve for x
    x = 590,954,352.74/27,915.68
  6. Step 6: Final answer
    x = 21,169.26

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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.