Home / 28,110.96-42,172.50-9,392.66

Finding the Fourth Proportional to 28,110.96, 42,172.50 and 9,392.66

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Solution

The fourth proportional to 28,110.96, 42,172.50 and 9,392.66 is: 14,091.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,110.96 : 42,172.50 = 9,392.66 : x
  2. Step 2: Convert to fraction form
    28,110.96/42,172.50 = 9,392.66/x
  3. Step 3: Cross multiply
    28,110.96x = 42,172.50 × 9,392.66
  4. Step 4: Simplify right side
    28,110.96x = 396,111,953.85
  5. Step 5: Solve for x
    x = 396,111,953.85/28,110.96
  6. Step 6: Final answer
    x = 14,091.01

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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.