Home / 29,705.36-40,955.64-21,217.64

Finding the Fourth Proportional to 29,705.36, 40,955.64 and 21,217.64

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Solution

The fourth proportional to 29,705.36, 40,955.64 and 21,217.64 is: 29,253.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,705.36 : 40,955.64 = 21,217.64 : x
  2. Step 2: Convert to fraction form
    29,705.36/40,955.64 = 21,217.64/x
  3. Step 3: Cross multiply
    29,705.36x = 40,955.64 × 21,217.64
  4. Step 4: Simplify right side
    29,705.36x = 868,982,025.49
  5. Step 5: Solve for x
    x = 868,982,025.49/29,705.36
  6. Step 6: Final answer
    x = 29,253.37

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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.