Home / 28,775.55-39,707.42-16,028.28

Finding the Fourth Proportional to 28,775.55, 39,707.42 and 16,028.28

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Solution

The fourth proportional to 28,775.55, 39,707.42 and 16,028.28 is: 22,117.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,775.55 : 39,707.42 = 16,028.28 : x
  2. Step 2: Convert to fraction form
    28,775.55/39,707.42 = 16,028.28/x
  3. Step 3: Cross multiply
    28,775.55x = 39,707.42 × 16,028.28
  4. Step 4: Simplify right side
    28,775.55x = 636,441,565.70
  5. Step 5: Solve for x
    x = 636,441,565.70/28,775.55
  6. Step 6: Final answer
    x = 22,117.44

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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.