Home / 42,912.24-64,345.32-15,206.64

Finding the Fourth Proportional to 42,912.24, 64,345.32 and 15,206.64

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Solution

The fourth proportional to 42,912.24, 64,345.32 and 15,206.64 is: 22,801.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,912.24 : 64,345.32 = 15,206.64 : x
  2. Step 2: Convert to fraction form
    42,912.24/64,345.32 = 15,206.64/x
  3. Step 3: Cross multiply
    42,912.24x = 64,345.32 × 15,206.64
  4. Step 4: Simplify right side
    42,912.24x = 978,476,116.92
  5. Step 5: Solve for x
    x = 978,476,116.92/42,912.24
  6. Step 6: Final answer
    x = 22,801.80

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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.