Home / 42,858.63-64,287.93-19,491.75

Finding the Fourth Proportional to 42,858.63, 64,287.93 and 19,491.75

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Solution

The fourth proportional to 42,858.63, 64,287.93 and 19,491.75 is: 29,237.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,858.63 : 64,287.93 = 19,491.75 : x
  2. Step 2: Convert to fraction form
    42,858.63/64,287.93 = 19,491.75/x
  3. Step 3: Cross multiply
    42,858.63x = 64,287.93 × 19,491.75
  4. Step 4: Simplify right side
    42,858.63x = 1,253,084,259.58
  5. Step 5: Solve for x
    x = 1,253,084,259.58/42,858.63
  6. Step 6: Final answer
    x = 29,237.62

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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.