Home / 43,129.17-64,693.40-11,964.42

Finding the Fourth Proportional to 43,129.17, 64,693.40 and 11,964.42

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Solution

The fourth proportional to 43,129.17, 64,693.40 and 11,964.42 is: 17,946.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,129.17 : 64,693.40 = 11,964.42 : x
  2. Step 2: Convert to fraction form
    43,129.17/64,693.40 = 11,964.42/x
  3. Step 3: Cross multiply
    43,129.17x = 64,693.40 × 11,964.42
  4. Step 4: Simplify right side
    43,129.17x = 774,018,949.01
  5. Step 5: Solve for x
    x = 774,018,949.01/43,129.17
  6. Step 6: Final answer
    x = 17,946.53

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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.