Home / 42,828.60-64,231.56-19,449.84

Finding the Fourth Proportional to 42,828.60, 64,231.56 and 19,449.84

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Solution

The fourth proportional to 42,828.60, 64,231.56 and 19,449.84 is: 29,169.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,828.60 : 64,231.56 = 19,449.84 : x
  2. Step 2: Convert to fraction form
    42,828.60/64,231.56 = 19,449.84/x
  3. Step 3: Cross multiply
    42,828.60x = 64,231.56 × 19,449.84
  4. Step 4: Simplify right side
    42,828.60x = 1,249,293,564.95
  5. Step 5: Solve for x
    x = 1,249,293,564.95/42,828.60
  6. Step 6: Final answer
    x = 29,169.61

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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.