Home / 20,683.13-31,024.71-5,100.75

Finding the Fourth Proportional to 20,683.13, 31,024.71 and 5,100.75

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Solution

The fourth proportional to 20,683.13, 31,024.71 and 5,100.75 is: 7,651.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,683.13 : 31,024.71 = 5,100.75 : x
  2. Step 2: Convert to fraction form
    20,683.13/31,024.71 = 5,100.75/x
  3. Step 3: Cross multiply
    20,683.13x = 31,024.71 × 5,100.75
  4. Step 4: Simplify right side
    20,683.13x = 158,249,289.53
  5. Step 5: Solve for x
    x = 158,249,289.53/20,683.13
  6. Step 6: Final answer
    x = 7,651.13

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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.