Home / 38,679.84-58,039.52-18,439.47

Finding the Fourth Proportional to 38,679.84, 58,039.52 and 18,439.47

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Solution

The fourth proportional to 38,679.84, 58,039.52 and 18,439.47 is: 27,668.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,679.84 : 58,039.52 = 18,439.47 : x
  2. Step 2: Convert to fraction form
    38,679.84/58,039.52 = 18,439.47/x
  3. Step 3: Cross multiply
    38,679.84x = 58,039.52 × 18,439.47
  4. Step 4: Simplify right side
    38,679.84x = 1,070,217,895.66
  5. Step 5: Solve for x
    x = 1,070,217,895.66/38,679.84
  6. Step 6: Final answer
    x = 27,668.62

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1.5x scale

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.