Home / 27,915.84-38,539.80-18,497.16

Finding the Fourth Proportional to 27,915.84, 38,539.80 and 18,497.16

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Solution

The fourth proportional to 27,915.84, 38,539.80 and 18,497.16 is: 25,536.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,915.84 : 38,539.80 = 18,497.16 : x
  2. Step 2: Convert to fraction form
    27,915.84/38,539.80 = 18,497.16/x
  3. Step 3: Cross multiply
    27,915.84x = 38,539.80 × 18,497.16
  4. Step 4: Simplify right side
    27,915.84x = 712,876,846.97
  5. Step 5: Solve for x
    x = 712,876,846.97/27,915.84
  6. Step 6: Final answer
    x = 25,536.64

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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.