Home / 29,289.52-40,419.57-15,860.79

Finding the Fourth Proportional to 29,289.52, 40,419.57 and 15,860.79

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Solution

The fourth proportional to 29,289.52, 40,419.57 and 15,860.79 is: 21,887.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,289.52 : 40,419.57 = 15,860.79 : x
  2. Step 2: Convert to fraction form
    29,289.52/40,419.57 = 15,860.79/x
  3. Step 3: Cross multiply
    29,289.52x = 40,419.57 × 15,860.79
  4. Step 4: Simplify right side
    29,289.52x = 641,086,371.14
  5. Step 5: Solve for x
    x = 641,086,371.14/29,289.52
  6. Step 6: Final answer
    x = 21,887.91

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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.