Home / 37,911.12-52,313.76-21,991.92

Finding the Fourth Proportional to 37,911.12, 52,313.76 and 21,991.92

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Solution

The fourth proportional to 37,911.12, 52,313.76 and 21,991.92 is: 30,346.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,911.12 : 52,313.76 = 21,991.92 : x
  2. Step 2: Convert to fraction form
    37,911.12/52,313.76 = 21,991.92/x
  3. Step 3: Cross multiply
    37,911.12x = 52,313.76 × 21,991.92
  4. Step 4: Simplify right side
    37,911.12x = 1,150,480,024.82
  5. Step 5: Solve for x
    x = 1,150,480,024.82/37,911.12
  6. Step 6: Final answer
    x = 30,346.77

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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.