Home / 19,864.90-29,790.67-8,015.61

Finding the Fourth Proportional to 19,864.90, 29,790.67 and 8,015.61

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Solution

The fourth proportional to 19,864.90, 29,790.67 and 8,015.61 is: 12,020.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,864.90 : 29,790.67 = 8,015.61 : x
  2. Step 2: Convert to fraction form
    19,864.90/29,790.67 = 8,015.61/x
  3. Step 3: Cross multiply
    19,864.90x = 29,790.67 × 8,015.61
  4. Step 4: Simplify right side
    19,864.90x = 238,790,392.36
  5. Step 5: Solve for x
    x = 238,790,392.36/19,864.90
  6. Step 6: Final answer
    x = 12,020.72

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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.