Home / 31,535.02-43,518.20-17,388.64

Finding the Fourth Proportional to 31,535.02, 43,518.20 and 17,388.64

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Solution

The fourth proportional to 31,535.02, 43,518.20 and 17,388.64 is: 23,996.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,535.02 : 43,518.20 = 17,388.64 : x
  2. Step 2: Convert to fraction form
    31,535.02/43,518.20 = 17,388.64/x
  3. Step 3: Cross multiply
    31,535.02x = 43,518.20 × 17,388.64
  4. Step 4: Simplify right side
    31,535.02x = 756,722,313.25
  5. Step 5: Solve for x
    x = 756,722,313.25/31,535.02
  6. Step 6: Final answer
    x = 23,996.25

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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.