Home / 31,656.25-43,686.77-17,509.20

Finding the Fourth Proportional to 31,656.25, 43,686.77 and 17,509.20

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Solution

The fourth proportional to 31,656.25, 43,686.77 and 17,509.20 is: 24,163.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,656.25 : 43,686.77 = 17,509.20 : x
  2. Step 2: Convert to fraction form
    31,656.25/43,686.77 = 17,509.20/x
  3. Step 3: Cross multiply
    31,656.25x = 43,686.77 × 17,509.20
  4. Step 4: Simplify right side
    31,656.25x = 764,920,174.85
  5. Step 5: Solve for x
    x = 764,920,174.85/31,656.25
  6. Step 6: Final answer
    x = 24,163.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.