Home / 43,035.04-64,555.78-11,870

Finding the Fourth Proportional to 43,035.04, 64,555.78 and 11,870

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Solution

The fourth proportional to 43,035.04, 64,555.78 and 11,870 is: 17,805.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,035.04 : 64,555.78 = 11,870 : x
  2. Step 2: Convert to fraction form
    43,035.04/64,555.78 = 11,870/x
  3. Step 3: Cross multiply
    43,035.04x = 64,555.78 × 11,870
  4. Step 4: Simplify right side
    43,035.04x = 766,277,108.60
  5. Step 5: Solve for x
    x = 766,277,108.60/43,035.04
  6. Step 6: Final answer
    x = 17,805.89

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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.