Home / 29,111.94-40,211.61-21,572.10

Finding the Fourth Proportional to 29,111.94, 40,211.61 and 21,572.10

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Solution

The fourth proportional to 29,111.94, 40,211.61 and 21,572.10 is: 29,797.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,111.94 : 40,211.61 = 21,572.10 : x
  2. Step 2: Convert to fraction form
    29,111.94/40,211.61 = 21,572.10/x
  3. Step 3: Cross multiply
    29,111.94x = 40,211.61 × 21,572.10
  4. Step 4: Simplify right side
    29,111.94x = 867,448,872.08
  5. Step 5: Solve for x
    x = 867,448,872.08/29,111.94
  6. Step 6: Final answer
    x = 29,797.01

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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.