Home / 47,018.75-70,478.51-15,420.54

Finding the Fourth Proportional to 47,018.75, 70,478.51 and 15,420.54

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Solution

The fourth proportional to 47,018.75, 70,478.51 and 15,420.54 is: 23,114.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,018.75 : 70,478.51 = 15,420.54 : x
  2. Step 2: Convert to fraction form
    47,018.75/70,478.51 = 15,420.54/x
  3. Step 3: Cross multiply
    47,018.75x = 70,478.51 × 15,420.54
  4. Step 4: Simplify right side
    47,018.75x = 1,086,816,869.79
  5. Step 5: Solve for x
    x = 1,086,816,869.79/47,018.75
  6. Step 6: Final answer
    x = 23,114.54

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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.