Home / 43,288.09-64,935.86-15,205.71

Finding the Fourth Proportional to 43,288.09, 64,935.86 and 15,205.71

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Solution

The fourth proportional to 43,288.09, 64,935.86 and 15,205.71 is: 22,809.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,288.09 : 64,935.86 = 15,205.71 : x
  2. Step 2: Convert to fraction form
    43,288.09/64,935.86 = 15,205.71/x
  3. Step 3: Cross multiply
    43,288.09x = 64,935.86 × 15,205.71
  4. Step 4: Simplify right side
    43,288.09x = 987,395,855.76
  5. Step 5: Solve for x
    x = 987,395,855.76/43,288.09
  6. Step 6: Final answer
    x = 22,809.87

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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.