Home / 20,716.08-31,063.95-8,868.18

Finding the Fourth Proportional to 20,716.08, 31,063.95 and 8,868.18

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Solution

The fourth proportional to 20,716.08, 31,063.95 and 8,868.18 is: 13,297.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,716.08 : 31,063.95 = 8,868.18 : x
  2. Step 2: Convert to fraction form
    20,716.08/31,063.95 = 8,868.18/x
  3. Step 3: Cross multiply
    20,716.08x = 31,063.95 × 8,868.18
  4. Step 4: Simplify right side
    20,716.08x = 275,480,700.11
  5. Step 5: Solve for x
    x = 275,480,700.11/20,716.08
  6. Step 6: Final answer
    x = 13,297.92

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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.