Home / 22,960.80-31,685.04-12,888.24

Finding the Fourth Proportional to 22,960.80, 31,685.04 and 12,888.24

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Solution

The fourth proportional to 22,960.80, 31,685.04 and 12,888.24 is: 17,785.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,960.80 : 31,685.04 = 12,888.24 : x
  2. Step 2: Convert to fraction form
    22,960.80/31,685.04 = 12,888.24/x
  3. Step 3: Cross multiply
    22,960.80x = 31,685.04 × 12,888.24
  4. Step 4: Simplify right side
    22,960.80x = 408,364,399.93
  5. Step 5: Solve for x
    x = 408,364,399.93/22,960.80
  6. Step 6: Final answer
    x = 17,785.29

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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.