Home / 42,895.82-64,342.81-11,731.07

Finding the Fourth Proportional to 42,895.82, 64,342.81 and 11,731.07

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Solution

The fourth proportional to 42,895.82, 64,342.81 and 11,731.07 is: 17,596.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,895.82 : 64,342.81 = 11,731.07 : x
  2. Step 2: Convert to fraction form
    42,895.82/64,342.81 = 11,731.07/x
  3. Step 3: Cross multiply
    42,895.82x = 64,342.81 × 11,731.07
  4. Step 4: Simplify right side
    42,895.82x = 754,809,701.06
  5. Step 5: Solve for x
    x = 754,809,701.06/42,895.82
  6. Step 6: Final answer
    x = 17,596.35

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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.