Home / 19,707.69-29,560.32-8,020.61

Finding the Fourth Proportional to 19,707.69, 29,560.32 and 8,020.61

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Solution

The fourth proportional to 19,707.69, 29,560.32 and 8,020.61 is: 12,030.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,707.69 : 29,560.32 = 8,020.61 : x
  2. Step 2: Convert to fraction form
    19,707.69/29,560.32 = 8,020.61/x
  3. Step 3: Cross multiply
    19,707.69x = 29,560.32 × 8,020.61
  4. Step 4: Simplify right side
    19,707.69x = 237,091,798.20
  5. Step 5: Solve for x
    x = 237,091,798.20/19,707.69
  6. Step 6: Final answer
    x = 12,030.42

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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.