Home / 42,894.56-64,346.30-11,729.81

Finding the Fourth Proportional to 42,894.56, 64,346.30 and 11,729.81

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Solution

The fourth proportional to 42,894.56, 64,346.30 and 11,729.81 is: 17,595.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,894.56 : 64,346.30 = 11,729.81 : x
  2. Step 2: Convert to fraction form
    42,894.56/64,346.30 = 11,729.81/x
  3. Step 3: Cross multiply
    42,894.56x = 64,346.30 × 11,729.81
  4. Step 4: Simplify right side
    42,894.56x = 754,770,019.41
  5. Step 5: Solve for x
    x = 754,770,019.41/42,894.56
  6. Step 6: Final answer
    x = 17,595.94

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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.