Home / 40,409.58-55,710.86-28,293.76

Finding the Fourth Proportional to 40,409.58, 55,710.86 and 28,293.76

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Solution

The fourth proportional to 40,409.58, 55,710.86 and 28,293.76 is: 39,007.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,409.58 : 55,710.86 = 28,293.76 : x
  2. Step 2: Convert to fraction form
    40,409.58/55,710.86 = 28,293.76/x
  3. Step 3: Cross multiply
    40,409.58x = 55,710.86 × 28,293.76
  4. Step 4: Simplify right side
    40,409.58x = 1,576,269,700.04
  5. Step 5: Solve for x
    x = 1,576,269,700.04/40,409.58
  6. Step 6: Final answer
    x = 39,007.33

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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.