Home / 47,212.83-70,798.05-13,921.20

Finding the Fourth Proportional to 47,212.83, 70,798.05 and 13,921.20

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Solution

The fourth proportional to 47,212.83, 70,798.05 and 13,921.20 is: 20,875.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,212.83 : 70,798.05 = 13,921.20 : x
  2. Step 2: Convert to fraction form
    47,212.83/70,798.05 = 13,921.20/x
  3. Step 3: Cross multiply
    47,212.83x = 70,798.05 × 13,921.20
  4. Step 4: Simplify right side
    47,212.83x = 985,593,813.66
  5. Step 5: Solve for x
    x = 985,593,813.66/47,212.83
  6. Step 6: Final answer
    x = 20,875.55

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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.