Home / 47,220.10-70,830.15-13,940.62

Finding the Fourth Proportional to 47,220.10, 70,830.15 and 13,940.62

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Solution

The fourth proportional to 47,220.10, 70,830.15 and 13,940.62 is: 20,910.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,220.10 : 70,830.15 = 13,940.62 : x
  2. Step 2: Convert to fraction form
    47,220.10/70,830.15 = 13,940.62/x
  3. Step 3: Cross multiply
    47,220.10x = 70,830.15 × 13,940.62
  4. Step 4: Simplify right side
    47,220.10x = 987,416,205.69
  5. Step 5: Solve for x
    x = 987,416,205.69/47,220.10
  6. Step 6: Final answer
    x = 20,910.93

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1.5x scale

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.