Home / 27,748.08-38,294.85-15,815.25

Finding the Fourth Proportional to 27,748.08, 38,294.85 and 15,815.25

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Solution

The fourth proportional to 27,748.08, 38,294.85 and 15,815.25 is: 21,826.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,748.08 : 38,294.85 = 15,815.25 : x
  2. Step 2: Convert to fraction form
    27,748.08/38,294.85 = 15,815.25/x
  3. Step 3: Cross multiply
    27,748.08x = 38,294.85 × 15,815.25
  4. Step 4: Simplify right side
    27,748.08x = 605,642,626.46
  5. Step 5: Solve for x
    x = 605,642,626.46/27,748.08
  6. Step 6: Final answer
    x = 21,826.47

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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.