Home / 40,309.76-55,628.08-22,405.52

Finding the Fourth Proportional to 40,309.76, 55,628.08 and 22,405.52

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Solution

The fourth proportional to 40,309.76, 55,628.08 and 22,405.52 is: 30,919.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,309.76 : 55,628.08 = 22,405.52 : x
  2. Step 2: Convert to fraction form
    40,309.76/55,628.08 = 22,405.52/x
  3. Step 3: Cross multiply
    40,309.76x = 55,628.08 × 22,405.52
  4. Step 4: Simplify right side
    40,309.76x = 1,246,376,059.00
  5. Step 5: Solve for x
    x = 1,246,376,059.00/40,309.76
  6. Step 6: Final answer
    x = 30,919.96

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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.