Home / 29,289.49-40,419.52-15,860.75

Finding the Fourth Proportional to 29,289.49, 40,419.52 and 15,860.75

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Solution

The fourth proportional to 29,289.49, 40,419.52 and 15,860.75 is: 21,887.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,289.49 : 40,419.52 = 15,860.75 : x
  2. Step 2: Convert to fraction form
    29,289.49/40,419.52 = 15,860.75/x
  3. Step 3: Cross multiply
    29,289.49x = 40,419.52 × 15,860.75
  4. Step 4: Simplify right side
    29,289.49x = 641,083,901.84
  5. Step 5: Solve for x
    x = 641,083,901.84/29,289.49
  6. Step 6: Final answer
    x = 21,887.85

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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.