Home / 29,272.45-40,395.93-15,843.70

Finding the Fourth Proportional to 29,272.45, 40,395.93 and 15,843.70

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Solution

The fourth proportional to 29,272.45, 40,395.93 and 15,843.70 is: 21,864.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,272.45 : 40,395.93 = 15,843.70 : x
  2. Step 2: Convert to fraction form
    29,272.45/40,395.93 = 15,843.70/x
  3. Step 3: Cross multiply
    29,272.45x = 40,395.93 × 15,843.70
  4. Step 4: Simplify right side
    29,272.45x = 640,020,996.14
  5. Step 5: Solve for x
    x = 640,020,996.14/29,272.45
  6. Step 6: Final answer
    x = 21,864.28

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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.