Home / 10,420.35-15,627.74-2,923.47

Finding the Fourth Proportional to 10,420.35, 15,627.74 and 2,923.47

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Solution

The fourth proportional to 10,420.35, 15,627.74 and 2,923.47 is: 4,384.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,420.35 : 15,627.74 = 2,923.47 : x
  2. Step 2: Convert to fraction form
    10,420.35/15,627.74 = 2,923.47/x
  3. Step 3: Cross multiply
    10,420.35x = 15,627.74 × 2,923.47
  4. Step 4: Simplify right side
    10,420.35x = 45,687,214.44
  5. Step 5: Solve for x
    x = 45,687,214.44/10,420.35
  6. Step 6: Final answer
    x = 4,384.42

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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.