Home / 47,085.86-70,629.38-13,806.59

Finding the Fourth Proportional to 47,085.86, 70,629.38 and 13,806.59

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Solution

The fourth proportional to 47,085.86, 70,629.38 and 13,806.59 is: 20,710.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,085.86 : 70,629.38 = 13,806.59 : x
  2. Step 2: Convert to fraction form
    47,085.86/70,629.38 = 13,806.59/x
  3. Step 3: Cross multiply
    47,085.86x = 70,629.38 × 13,806.59
  4. Step 4: Simplify right side
    47,085.86x = 975,150,469.43
  5. Step 5: Solve for x
    x = 975,150,469.43/47,085.86
  6. Step 6: Final answer
    x = 20,710.05

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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.