Home / 20,894.81-31,350.43-9,199.83

Finding the Fourth Proportional to 20,894.81, 31,350.43 and 9,199.83

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Solution

The fourth proportional to 20,894.81, 31,350.43 and 9,199.83 is: 13,803.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,894.81 : 31,350.43 = 9,199.83 : x
  2. Step 2: Convert to fraction form
    20,894.81/31,350.43 = 9,199.83/x
  3. Step 3: Cross multiply
    20,894.81x = 31,350.43 × 9,199.83
  4. Step 4: Simplify right side
    20,894.81x = 288,418,527.40
  5. Step 5: Solve for x
    x = 288,418,527.40/20,894.81
  6. Step 6: Final answer
    x = 13,803.36

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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.