Home / 47,078.72-70,620.22-13,347.16

Finding the Fourth Proportional to 47,078.72, 70,620.22 and 13,347.16

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Solution

The fourth proportional to 47,078.72, 70,620.22 and 13,347.16 is: 20,021.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,078.72 : 70,620.22 = 13,347.16 : x
  2. Step 2: Convert to fraction form
    47,078.72/70,620.22 = 13,347.16/x
  3. Step 3: Cross multiply
    47,078.72x = 70,620.22 × 13,347.16
  4. Step 4: Simplify right side
    47,078.72x = 942,579,165.66
  5. Step 5: Solve for x
    x = 942,579,165.66/47,078.72
  6. Step 6: Final answer
    x = 20,021.34

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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.