Home / 28,108.96-42,167.76-9,383.20

Finding the Fourth Proportional to 28,108.96, 42,167.76 and 9,383.20

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Solution

The fourth proportional to 28,108.96, 42,167.76 and 9,383.20 is: 14,076.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,108.96 : 42,167.76 = 9,383.20 : x
  2. Step 2: Convert to fraction form
    28,108.96/42,167.76 = 9,383.20/x
  3. Step 3: Cross multiply
    28,108.96x = 42,167.76 × 9,383.20
  4. Step 4: Simplify right side
    28,108.96x = 395,668,525.63
  5. Step 5: Solve for x
    x = 395,668,525.63/28,108.96
  6. Step 6: Final answer
    x = 14,076.24

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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.