Home / 21,035.15-31,555.86-6,242.33

Finding the Fourth Proportional to 21,035.15, 31,555.86 and 6,242.33

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Solution

The fourth proportional to 21,035.15, 31,555.86 and 6,242.33 is: 9,364.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,035.15 : 31,555.86 = 6,242.33 : x
  2. Step 2: Convert to fraction form
    21,035.15/31,555.86 = 6,242.33/x
  3. Step 3: Cross multiply
    21,035.15x = 31,555.86 × 6,242.33
  4. Step 4: Simplify right side
    21,035.15x = 196,981,933.77
  5. Step 5: Solve for x
    x = 196,981,933.77/21,035.15
  6. Step 6: Final answer
    x = 9,364.42

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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.