Home / 31,655.64-43,686.63-17,509.80

Finding the Fourth Proportional to 31,655.64, 43,686.63 and 17,509.80

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Solution

The fourth proportional to 31,655.64, 43,686.63 and 17,509.80 is: 24,164.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,655.64 : 43,686.63 = 17,509.80 : x
  2. Step 2: Convert to fraction form
    31,655.64/43,686.63 = 17,509.80/x
  3. Step 3: Cross multiply
    31,655.64x = 43,686.63 × 17,509.80
  4. Step 4: Simplify right side
    31,655.64x = 764,944,153.97
  5. Step 5: Solve for x
    x = 764,944,153.97/31,655.64
  6. Step 6: Final answer
    x = 24,164.55

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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.