Home / 19,311.78-26,632.08-15,346.02

Finding the Fourth Proportional to 19,311.78, 26,632.08 and 15,346.02

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Solution

The fourth proportional to 19,311.78, 26,632.08 and 15,346.02 is: 21,163.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,311.78 : 26,632.08 = 15,346.02 : x
  2. Step 2: Convert to fraction form
    19,311.78/26,632.08 = 15,346.02/x
  3. Step 3: Cross multiply
    19,311.78x = 26,632.08 × 15,346.02
  4. Step 4: Simplify right side
    19,311.78x = 408,696,432.32
  5. Step 5: Solve for x
    x = 408,696,432.32/19,311.78
  6. Step 6: Final answer
    x = 21,163.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.