Home / 28,767.55-39,699.14-16,020.88

Finding the Fourth Proportional to 28,767.55, 39,699.14 and 16,020.88

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Solution

The fourth proportional to 28,767.55, 39,699.14 and 16,020.88 is: 22,108.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,767.55 : 39,699.14 = 16,020.88 : x
  2. Step 2: Convert to fraction form
    28,767.55/39,699.14 = 16,020.88/x
  3. Step 3: Cross multiply
    28,767.55x = 39,699.14 × 16,020.88
  4. Step 4: Simplify right side
    28,767.55x = 636,014,978.69
  5. Step 5: Solve for x
    x = 636,014,978.69/28,767.55
  6. Step 6: Final answer
    x = 22,108.77

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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.