Home / 22,715.80-31,352.33-13,157.26

Finding the Fourth Proportional to 22,715.80, 31,352.33 and 13,157.26

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Solution

The fourth proportional to 22,715.80, 31,352.33 and 13,157.26 is: 18,159.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,715.80 : 31,352.33 = 13,157.26 : x
  2. Step 2: Convert to fraction form
    22,715.80/31,352.33 = 13,157.26/x
  3. Step 3: Cross multiply
    22,715.80x = 31,352.33 × 13,157.26
  4. Step 4: Simplify right side
    22,715.80x = 412,510,757.42
  5. Step 5: Solve for x
    x = 412,510,757.42/22,715.80
  6. Step 6: Final answer
    x = 18,159.64

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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.