Home / 15,920.94-23,875.14-5,388.06

Finding the Fourth Proportional to 15,920.94, 23,875.14 and 5,388.06

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Solution

The fourth proportional to 15,920.94, 23,875.14 and 5,388.06 is: 8,079.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,920.94 : 23,875.14 = 5,388.06 : x
  2. Step 2: Convert to fraction form
    15,920.94/23,875.14 = 5,388.06/x
  3. Step 3: Cross multiply
    15,920.94x = 23,875.14 × 5,388.06
  4. Step 4: Simplify right side
    15,920.94x = 128,640,686.83
  5. Step 5: Solve for x
    x = 128,640,686.83/15,920.94
  6. Step 6: Final answer
    x = 8,079.97

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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.