Home / 21,035.16-31,550.64-8,555.92

Finding the Fourth Proportional to 21,035.16, 31,550.64 and 8,555.92

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Solution

The fourth proportional to 21,035.16, 31,550.64 and 8,555.92 is: 12,833.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,035.16 : 31,550.64 = 8,555.92 : x
  2. Step 2: Convert to fraction form
    21,035.16/31,550.64 = 8,555.92/x
  3. Step 3: Cross multiply
    21,035.16x = 31,550.64 × 8,555.92
  4. Step 4: Simplify right side
    21,035.16x = 269,944,751.79
  5. Step 5: Solve for x
    x = 269,944,751.79/21,035.16
  6. Step 6: Final answer
    x = 12,833.03

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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.