Home / 42,933.20-64,392.42-11,343.60

Finding the Fourth Proportional to 42,933.20, 64,392.42 and 11,343.60

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Solution

The fourth proportional to 42,933.20, 64,392.42 and 11,343.60 is: 17,013.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,933.20 : 64,392.42 = 11,343.60 : x
  2. Step 2: Convert to fraction form
    42,933.20/64,392.42 = 11,343.60/x
  3. Step 3: Cross multiply
    42,933.20x = 64,392.42 × 11,343.60
  4. Step 4: Simplify right side
    42,933.20x = 730,441,855.51
  5. Step 5: Solve for x
    x = 730,441,855.51/42,933.20
  6. Step 6: Final answer
    x = 17,013.45

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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.