Home / 27,775.23-38,328.90-15,842.43

Finding the Fourth Proportional to 27,775.23, 38,328.90 and 15,842.43

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Solution

The fourth proportional to 27,775.23, 38,328.90 and 15,842.43 is: 21,862.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,775.23 : 38,328.90 = 15,842.43 : x
  2. Step 2: Convert to fraction form
    27,775.23/38,328.90 = 15,842.43/x
  3. Step 3: Cross multiply
    27,775.23x = 38,328.90 × 15,842.43
  4. Step 4: Simplify right side
    27,775.23x = 607,222,915.23
  5. Step 5: Solve for x
    x = 607,222,915.23/27,775.23
  6. Step 6: Final answer
    x = 21,862.03

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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.