Home / 47,189.77-70,735.45-19,129.20

Finding the Fourth Proportional to 47,189.77, 70,735.45 and 19,129.20

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Solution

The fourth proportional to 47,189.77, 70,735.45 and 19,129.20 is: 28,673.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,189.77 : 70,735.45 = 19,129.20 : x
  2. Step 2: Convert to fraction form
    47,189.77/70,735.45 = 19,129.20/x
  3. Step 3: Cross multiply
    47,189.77x = 70,735.45 × 19,129.20
  4. Step 4: Simplify right side
    47,189.77x = 1,353,112,346.73
  5. Step 5: Solve for x
    x = 1,353,112,346.73/47,189.77
  6. Step 6: Final answer
    x = 28,673.85

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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.