Home / 15,431.05-23,141.80-5,569.05

Finding the Fourth Proportional to 15,431.05, 23,141.80 and 5,569.05

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Solution

The fourth proportional to 15,431.05, 23,141.80 and 5,569.05 is: 8,351.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,431.05 : 23,141.80 = 5,569.05 : x
  2. Step 2: Convert to fraction form
    15,431.05/23,141.80 = 5,569.05/x
  3. Step 3: Cross multiply
    15,431.05x = 23,141.80 × 5,569.05
  4. Step 4: Simplify right side
    15,431.05x = 128,877,831.39
  5. Step 5: Solve for x
    x = 128,877,831.39/15,431.05
  6. Step 6: Final answer
    x = 8,351.85

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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.