Home / 47,109.88-70,656.11-21,458.17

Finding the Fourth Proportional to 47,109.88, 70,656.11 and 21,458.17

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Solution

The fourth proportional to 47,109.88, 70,656.11 and 21,458.17 is: 32,183.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,109.88 : 70,656.11 = 21,458.17 : x
  2. Step 2: Convert to fraction form
    47,109.88/70,656.11 = 21,458.17/x
  3. Step 3: Cross multiply
    47,109.88x = 70,656.11 × 21,458.17
  4. Step 4: Simplify right side
    47,109.88x = 1,516,150,412.99
  5. Step 5: Solve for x
    x = 1,516,150,412.99/47,109.88
  6. Step 6: Final answer
    x = 32,183.28

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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.