Home / 29,018.72-43,395.04-21,628.32

Finding the Fourth Proportional to 29,018.72, 43,395.04 and 21,628.32

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Solution

The fourth proportional to 29,018.72, 43,395.04 and 21,628.32 is: 32,343.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,018.72 : 43,395.04 = 21,628.32 : x
  2. Step 2: Convert to fraction form
    29,018.72/43,395.04 = 21,628.32/x
  3. Step 3: Cross multiply
    29,018.72x = 43,395.04 × 21,628.32
  4. Step 4: Simplify right side
    29,018.72x = 938,561,811.53
  5. Step 5: Solve for x
    x = 938,561,811.53/29,018.72
  6. Step 6: Final answer
    x = 32,343.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.