Home / 20,562.36-30,851.66-8,718.68

Finding the Fourth Proportional to 20,562.36, 30,851.66 and 8,718.68

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Solution

The fourth proportional to 20,562.36, 30,851.66 and 8,718.68 is: 13,081.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,562.36 : 30,851.66 = 8,718.68 : x
  2. Step 2: Convert to fraction form
    20,562.36/30,851.66 = 8,718.68/x
  3. Step 3: Cross multiply
    20,562.36x = 30,851.66 × 8,718.68
  4. Step 4: Simplify right side
    20,562.36x = 268,985,751.01
  5. Step 5: Solve for x
    x = 268,985,751.01/20,562.36
  6. Step 6: Final answer
    x = 13,081.46

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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.