Home / 22,969.28-31,674.57-21,720.26

Finding the Fourth Proportional to 22,969.28, 31,674.57 and 21,720.26

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Solution

The fourth proportional to 22,969.28, 31,674.57 and 21,720.26 is: 29,952.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,969.28 : 31,674.57 = 21,720.26 : x
  2. Step 2: Convert to fraction form
    22,969.28/31,674.57 = 21,720.26/x
  3. Step 3: Cross multiply
    22,969.28x = 31,674.57 × 21,720.26
  4. Step 4: Simplify right side
    22,969.28x = 687,979,895.79
  5. Step 5: Solve for x
    x = 687,979,895.79/22,969.28
  6. Step 6: Final answer
    x = 29,952.18

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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.