Home / 34,749.60-47,936.79-21,981.27

Finding the Fourth Proportional to 34,749.60, 47,936.79 and 21,981.27

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Solution

The fourth proportional to 34,749.60, 47,936.79 and 21,981.27 is: 30,322.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,749.60 : 47,936.79 = 21,981.27 : x
  2. Step 2: Convert to fraction form
    34,749.60/47,936.79 = 21,981.27/x
  3. Step 3: Cross multiply
    34,749.60x = 47,936.79 × 21,981.27
  4. Step 4: Simplify right side
    34,749.60x = 1,053,711,523.92
  5. Step 5: Solve for x
    x = 1,053,711,523.92/34,749.60
  6. Step 6: Final answer
    x = 30,322.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.