Home / 28,767.78-39,698.72-16,020.96

Finding the Fourth Proportional to 28,767.78, 39,698.72 and 16,020.96

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Solution

The fourth proportional to 28,767.78, 39,698.72 and 16,020.96 is: 22,108.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,767.78 : 39,698.72 = 16,020.96 : x
  2. Step 2: Convert to fraction form
    28,767.78/39,698.72 = 16,020.96/x
  3. Step 3: Cross multiply
    28,767.78x = 39,698.72 × 16,020.96
  4. Step 4: Simplify right side
    28,767.78x = 636,011,605.17
  5. Step 5: Solve for x
    x = 636,011,605.17/28,767.78
  6. Step 6: Final answer
    x = 22,108.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.