Home / 28,825.04-39,778.48-15,577.04

Finding the Fourth Proportional to 28,825.04, 39,778.48 and 15,577.04

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Solution

The fourth proportional to 28,825.04, 39,778.48 and 15,577.04 is: 21,496.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,825.04 : 39,778.48 = 15,577.04 : x
  2. Step 2: Convert to fraction form
    28,825.04/39,778.48 = 15,577.04/x
  3. Step 3: Cross multiply
    28,825.04x = 39,778.48 × 15,577.04
  4. Step 4: Simplify right side
    28,825.04x = 619,630,974.10
  5. Step 5: Solve for x
    x = 619,630,974.10/28,825.04
  6. Step 6: Final answer
    x = 21,496.27

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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.