Home / 28,073.16-42,109.62-11,429.24

Finding the Fourth Proportional to 28,073.16, 42,109.62 and 11,429.24

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Solution

The fourth proportional to 28,073.16, 42,109.62 and 11,429.24 is: 17,143.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,073.16 : 42,109.62 = 11,429.24 : x
  2. Step 2: Convert to fraction form
    28,073.16/42,109.62 = 11,429.24/x
  3. Step 3: Cross multiply
    28,073.16x = 42,109.62 × 11,429.24
  4. Step 4: Simplify right side
    28,073.16x = 481,280,953.29
  5. Step 5: Solve for x
    x = 481,280,953.29/28,073.16
  6. Step 6: Final answer
    x = 17,143.81

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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.