Home / 29,285.49-40,414-15,856.75

Finding the Fourth Proportional to 29,285.49, 40,414 and 15,856.75

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Solution

The fourth proportional to 29,285.49, 40,414 and 15,856.75 is: 21,882.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,285.49 : 40,414 = 15,856.75 : x
  2. Step 2: Convert to fraction form
    29,285.49/40,414 = 15,856.75/x
  3. Step 3: Cross multiply
    29,285.49x = 40,414 × 15,856.75
  4. Step 4: Simplify right side
    29,285.49x = 640,834,694.50
  5. Step 5: Solve for x
    x = 640,834,694.50/29,285.49
  6. Step 6: Final answer
    x = 21,882.33

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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.