Home / 39,116.46-58,668.74-12,820.62

Finding the Fourth Proportional to 39,116.46, 58,668.74 and 12,820.62

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Solution

The fourth proportional to 39,116.46, 58,668.74 and 12,820.62 is: 19,228.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,116.46 : 58,668.74 = 12,820.62 : x
  2. Step 2: Convert to fraction form
    39,116.46/58,668.74 = 12,820.62/x
  3. Step 3: Cross multiply
    39,116.46x = 58,668.74 × 12,820.62
  4. Step 4: Simplify right side
    39,116.46x = 752,169,621.42
  5. Step 5: Solve for x
    x = 752,169,621.42/39,116.46
  6. Step 6: Final answer
    x = 19,228.98

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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.