Home / 28,095.22-42,142.68-11,455.19

Finding the Fourth Proportional to 28,095.22, 42,142.68 and 11,455.19

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Solution

The fourth proportional to 28,095.22, 42,142.68 and 11,455.19 is: 17,182.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,095.22 : 42,142.68 = 11,455.19 : x
  2. Step 2: Convert to fraction form
    28,095.22/42,142.68 = 11,455.19/x
  3. Step 3: Cross multiply
    28,095.22x = 42,142.68 × 11,455.19
  4. Step 4: Simplify right side
    28,095.22x = 482,752,353.83
  5. Step 5: Solve for x
    x = 482,752,353.83/28,095.22
  6. Step 6: Final answer
    x = 17,182.72

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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.