Home / 19,748.85-27,235.35-15,442.50

Finding the Fourth Proportional to 19,748.85, 27,235.35 and 15,442.50

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Solution

The fourth proportional to 19,748.85, 27,235.35 and 15,442.50 is: 21,296.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,748.85 : 27,235.35 = 15,442.50 : x
  2. Step 2: Convert to fraction form
    19,748.85/27,235.35 = 15,442.50/x
  3. Step 3: Cross multiply
    19,748.85x = 27,235.35 × 15,442.50
  4. Step 4: Simplify right side
    19,748.85x = 420,581,892.38
  5. Step 5: Solve for x
    x = 420,581,892.38/19,748.85
  6. Step 6: Final answer
    x = 21,296.53

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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.