Home / 21,404.76-29,552.44-19,162.78

Finding the Fourth Proportional to 21,404.76, 29,552.44 and 19,162.78

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Solution

The fourth proportional to 21,404.76, 29,552.44 and 19,162.78 is: 26,457.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,404.76 : 29,552.44 = 19,162.78 : x
  2. Step 2: Convert to fraction form
    21,404.76/29,552.44 = 19,162.78/x
  3. Step 3: Cross multiply
    21,404.76x = 29,552.44 × 19,162.78
  4. Step 4: Simplify right side
    21,404.76x = 566,306,906.18
  5. Step 5: Solve for x
    x = 566,306,906.18/21,404.76
  6. Step 6: Final answer
    x = 26,457.05

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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.