Home / 15,389.38-23,079.51-4,293.39

Finding the Fourth Proportional to 15,389.38, 23,079.51 and 4,293.39

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Solution

The fourth proportional to 15,389.38, 23,079.51 and 4,293.39 is: 6,438.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,389.38 : 23,079.51 = 4,293.39 : x
  2. Step 2: Convert to fraction form
    15,389.38/23,079.51 = 4,293.39/x
  3. Step 3: Cross multiply
    15,389.38x = 23,079.51 × 4,293.39
  4. Step 4: Simplify right side
    15,389.38x = 99,089,337.44
  5. Step 5: Solve for x
    x = 99,089,337.44/15,389.38
  6. Step 6: Final answer
    x = 6,438.81

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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.