Home / 47,130.92-70,707.64-13,850.25

Finding the Fourth Proportional to 47,130.92, 70,707.64 and 13,850.25

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Solution

The fourth proportional to 47,130.92, 70,707.64 and 13,850.25 is: 20,778.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,130.92 : 70,707.64 = 13,850.25 : x
  2. Step 2: Convert to fraction form
    47,130.92/70,707.64 = 13,850.25/x
  3. Step 3: Cross multiply
    47,130.92x = 70,707.64 × 13,850.25
  4. Step 4: Simplify right side
    47,130.92x = 979,318,490.91
  5. Step 5: Solve for x
    x = 979,318,490.91/47,130.92
  6. Step 6: Final answer
    x = 20,778.68

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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.