Home / 27,992.79-38,617.56-18,915.22

Finding the Fourth Proportional to 27,992.79, 38,617.56 and 18,915.22

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Solution

The fourth proportional to 27,992.79, 38,617.56 and 18,915.22 is: 26,094.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,992.79 : 38,617.56 = 18,915.22 : x
  2. Step 2: Convert to fraction form
    27,992.79/38,617.56 = 18,915.22/x
  3. Step 3: Cross multiply
    27,992.79x = 38,617.56 × 18,915.22
  4. Step 4: Simplify right side
    27,992.79x = 730,459,643.26
  5. Step 5: Solve for x
    x = 730,459,643.26/27,992.79
  6. Step 6: Final answer
    x = 26,094.56

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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.