Home / 31,349.58-43,262.51-17,921.20

Finding the Fourth Proportional to 31,349.58, 43,262.51 and 17,921.20

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Solution

The fourth proportional to 31,349.58, 43,262.51 and 17,921.20 is: 24,731.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,349.58 : 43,262.51 = 17,921.20 : x
  2. Step 2: Convert to fraction form
    31,349.58/43,262.51 = 17,921.20/x
  3. Step 3: Cross multiply
    31,349.58x = 43,262.51 × 17,921.20
  4. Step 4: Simplify right side
    31,349.58x = 775,315,977.57
  5. Step 5: Solve for x
    x = 775,315,977.57/31,349.58
  6. Step 6: Final answer
    x = 24,731.30

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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.