Home / 29,282.79-40,409.97-15,853.70

Finding the Fourth Proportional to 29,282.79, 40,409.97 and 15,853.70

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Solution

The fourth proportional to 29,282.79, 40,409.97 and 15,853.70 is: 21,877.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,282.79 : 40,409.97 = 15,853.70 : x
  2. Step 2: Convert to fraction form
    29,282.79/40,409.97 = 15,853.70/x
  3. Step 3: Cross multiply
    29,282.79x = 40,409.97 × 15,853.70
  4. Step 4: Simplify right side
    29,282.79x = 640,647,339.34
  5. Step 5: Solve for x
    x = 640,647,339.34/29,282.79
  6. Step 6: Final answer
    x = 21,877.95

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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.