Home / 26,748.11-36,911.15-15,419.63

Finding the Fourth Proportional to 26,748.11, 36,911.15 and 15,419.63

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Solution

The fourth proportional to 26,748.11, 36,911.15 and 15,419.63 is: 21,278.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,748.11 : 36,911.15 = 15,419.63 : x
  2. Step 2: Convert to fraction form
    26,748.11/36,911.15 = 15,419.63/x
  3. Step 3: Cross multiply
    26,748.11x = 36,911.15 × 15,419.63
  4. Step 4: Simplify right side
    26,748.11x = 569,156,275.87
  5. Step 5: Solve for x
    x = 569,156,275.87/26,748.11
  6. Step 6: Final answer
    x = 21,278.37

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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.