Home / 39,150.24-58,656.16-20,695.20

Finding the Fourth Proportional to 39,150.24, 58,656.16 and 20,695.20

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Solution

The fourth proportional to 39,150.24, 58,656.16 and 20,695.20 is: 31,006.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,150.24 : 58,656.16 = 20,695.20 : x
  2. Step 2: Convert to fraction form
    39,150.24/58,656.16 = 20,695.20/x
  3. Step 3: Cross multiply
    39,150.24x = 58,656.16 × 20,695.20
  4. Step 4: Simplify right side
    39,150.24x = 1,213,900,962.43
  5. Step 5: Solve for x
    x = 1,213,900,962.43/39,150.24
  6. Step 6: Final answer
    x = 31,006.22

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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.