Home / 20,926.47-31,390.79-5,344.23

Finding the Fourth Proportional to 20,926.47, 31,390.79 and 5,344.23

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Solution

The fourth proportional to 20,926.47, 31,390.79 and 5,344.23 is: 8,016.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,926.47 : 31,390.79 = 5,344.23 : x
  2. Step 2: Convert to fraction form
    20,926.47/31,390.79 = 5,344.23/x
  3. Step 3: Cross multiply
    20,926.47x = 31,390.79 × 5,344.23
  4. Step 4: Simplify right side
    20,926.47x = 167,759,574.92
  5. Step 5: Solve for x
    x = 167,759,574.92/20,926.47
  6. Step 6: Final answer
    x = 8,016.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.