Home / 42,639.96-63,960.09-13,057.67

Finding the Fourth Proportional to 42,639.96, 63,960.09 and 13,057.67

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Solution

The fourth proportional to 42,639.96, 63,960.09 and 13,057.67 is: 19,586.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,639.96 : 63,960.09 = 13,057.67 : x
  2. Step 2: Convert to fraction form
    42,639.96/63,960.09 = 13,057.67/x
  3. Step 3: Cross multiply
    42,639.96x = 63,960.09 × 13,057.67
  4. Step 4: Simplify right side
    42,639.96x = 835,169,748.39
  5. Step 5: Solve for x
    x = 835,169,748.39/42,639.96
  6. Step 6: Final answer
    x = 19,586.55

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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.