Home / 47,308.78-70,961.62-19,220.53

Finding the Fourth Proportional to 47,308.78, 70,961.62 and 19,220.53

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Solution

The fourth proportional to 47,308.78, 70,961.62 and 19,220.53 is: 28,830.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,308.78 : 70,961.62 = 19,220.53 : x
  2. Step 2: Convert to fraction form
    47,308.78/70,961.62 = 19,220.53/x
  3. Step 3: Cross multiply
    47,308.78x = 70,961.62 × 19,220.53
  4. Step 4: Simplify right side
    47,308.78x = 1,363,919,495.15
  5. Step 5: Solve for x
    x = 1,363,919,495.15/47,308.78
  6. Step 6: Final answer
    x = 28,830.16

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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.