Home / 31,601.04-43,607.64-18,170.16

Finding the Fourth Proportional to 31,601.04, 43,607.64 and 18,170.16

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Solution

The fourth proportional to 31,601.04, 43,607.64 and 18,170.16 is: 25,073.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,601.04 : 43,607.64 = 18,170.16 : x
  2. Step 2: Convert to fraction form
    31,601.04/43,607.64 = 18,170.16/x
  3. Step 3: Cross multiply
    31,601.04x = 43,607.64 × 18,170.16
  4. Step 4: Simplify right side
    31,601.04x = 792,357,796.02
  5. Step 5: Solve for x
    x = 792,357,796.02/31,601.04
  6. Step 6: Final answer
    x = 25,073.79

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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.