Home / 21,140.16-31,711.77-6,350.23

Finding the Fourth Proportional to 21,140.16, 31,711.77 and 6,350.23

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Solution

The fourth proportional to 21,140.16, 31,711.77 and 6,350.23 is: 9,525.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,140.16 : 31,711.77 = 6,350.23 : x
  2. Step 2: Convert to fraction form
    21,140.16/31,711.77 = 6,350.23/x
  3. Step 3: Cross multiply
    21,140.16x = 31,711.77 × 6,350.23
  4. Step 4: Simplify right side
    21,140.16x = 201,377,072.85
  5. Step 5: Solve for x
    x = 201,377,072.85/21,140.16
  6. Step 6: Final answer
    x = 9,525.81

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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.