Home / 43,287.01-64,881.30-18,311.47

Finding the Fourth Proportional to 43,287.01, 64,881.30 and 18,311.47

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Solution

The fourth proportional to 43,287.01, 64,881.30 and 18,311.47 is: 27,446.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,287.01 : 64,881.30 = 18,311.47 : x
  2. Step 2: Convert to fraction form
    43,287.01/64,881.30 = 18,311.47/x
  3. Step 3: Cross multiply
    43,287.01x = 64,881.30 × 18,311.47
  4. Step 4: Simplify right side
    43,287.01x = 1,188,071,978.51
  5. Step 5: Solve for x
    x = 1,188,071,978.51/43,287.01
  6. Step 6: Final answer
    x = 27,446.39

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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.