Home / 31,687.43-43,739.65-19,597.16

Finding the Fourth Proportional to 31,687.43, 43,739.65 and 19,597.16

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Solution

The fourth proportional to 31,687.43, 43,739.65 and 19,597.16 is: 27,050.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,687.43 : 43,739.65 = 19,597.16 : x
  2. Step 2: Convert to fraction form
    31,687.43/43,739.65 = 19,597.16/x
  3. Step 3: Cross multiply
    31,687.43x = 43,739.65 × 19,597.16
  4. Step 4: Simplify right side
    31,687.43x = 857,173,077.74
  5. Step 5: Solve for x
    x = 857,173,077.74/31,687.43
  6. Step 6: Final answer
    x = 27,050.89

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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.