Home / 20,683.27-31,014.16-10,148.68

Finding the Fourth Proportional to 20,683.27, 31,014.16 and 10,148.68

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Solution

The fourth proportional to 20,683.27, 31,014.16 and 10,148.68 is: 15,217.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,683.27 : 31,014.16 = 10,148.68 : x
  2. Step 2: Convert to fraction form
    20,683.27/31,014.16 = 10,148.68/x
  3. Step 3: Cross multiply
    20,683.27x = 31,014.16 × 10,148.68
  4. Step 4: Simplify right side
    20,683.27x = 314,752,785.31
  5. Step 5: Solve for x
    x = 314,752,785.31/20,683.27
  6. Step 6: Final answer
    x = 15,217.75

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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.