Home / 27,915.88-38,523.91-15,340.63

Finding the Fourth Proportional to 27,915.88, 38,523.91 and 15,340.63

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Solution

The fourth proportional to 27,915.88, 38,523.91 and 15,340.63 is: 21,170.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,915.88 : 38,523.91 = 15,340.63 : x
  2. Step 2: Convert to fraction form
    27,915.88/38,523.91 = 15,340.63/x
  3. Step 3: Cross multiply
    27,915.88x = 38,523.91 × 15,340.63
  4. Step 4: Simplify right side
    27,915.88x = 590,980,818.49
  5. Step 5: Solve for x
    x = 590,980,818.49/27,915.88
  6. Step 6: Final answer
    x = 21,170.06

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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.