Home / 19,543.20-26,977.68-13,961.76

Finding the Fourth Proportional to 19,543.20, 26,977.68 and 13,961.76

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Solution

The fourth proportional to 19,543.20, 26,977.68 and 13,961.76 is: 19,272.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,543.20 : 26,977.68 = 13,961.76 : x
  2. Step 2: Convert to fraction form
    19,543.20/26,977.68 = 13,961.76/x
  3. Step 3: Cross multiply
    19,543.20x = 26,977.68 × 13,961.76
  4. Step 4: Simplify right side
    19,543.20x = 376,655,893.52
  5. Step 5: Solve for x
    x = 376,655,893.52/19,543.20
  6. Step 6: Final answer
    x = 19,272.99

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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.