Home / 39,115.21-58,651.62-13,802.05

Finding the Fourth Proportional to 39,115.21, 58,651.62 and 13,802.05

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Solution

The fourth proportional to 39,115.21, 58,651.62 and 13,802.05 is: 20,695.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,115.21 : 58,651.62 = 13,802.05 : x
  2. Step 2: Convert to fraction form
    39,115.21/58,651.62 = 13,802.05/x
  3. Step 3: Cross multiply
    39,115.21x = 58,651.62 × 13,802.05
  4. Step 4: Simplify right side
    39,115.21x = 809,512,591.82
  5. Step 5: Solve for x
    x = 809,512,591.82/39,115.21
  6. Step 6: Final answer
    x = 20,695.60

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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.