Home / 28,101.72-42,159.50-9,383.77

Finding the Fourth Proportional to 28,101.72, 42,159.50 and 9,383.77

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Solution

The fourth proportional to 28,101.72, 42,159.50 and 9,383.77 is: 14,077.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,101.72 : 42,159.50 = 9,383.77 : x
  2. Step 2: Convert to fraction form
    28,101.72/42,159.50 = 9,383.77/x
  3. Step 3: Cross multiply
    28,101.72x = 42,159.50 × 9,383.77
  4. Step 4: Simplify right side
    28,101.72x = 395,615,051.32
  5. Step 5: Solve for x
    x = 395,615,051.32/28,101.72
  6. Step 6: Final answer
    x = 14,077.97

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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.