Home / 20,943.33-31,389.42-9,835.18

Finding the Fourth Proportional to 20,943.33, 31,389.42 and 9,835.18

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Solution

The fourth proportional to 20,943.33, 31,389.42 and 9,835.18 is: 14,740.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,943.33 : 31,389.42 = 9,835.18 : x
  2. Step 2: Convert to fraction form
    20,943.33/31,389.42 = 9,835.18/x
  3. Step 3: Cross multiply
    20,943.33x = 31,389.42 × 9,835.18
  4. Step 4: Simplify right side
    20,943.33x = 308,720,595.80
  5. Step 5: Solve for x
    x = 308,720,595.80/20,943.33
  6. Step 6: Final answer
    x = 14,740.76

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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.