Home / 31,530.64-43,514.16-17,383.40

Finding the Fourth Proportional to 31,530.64, 43,514.16 and 17,383.40

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Solution

The fourth proportional to 31,530.64, 43,514.16 and 17,383.40 is: 23,990.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,530.64 : 43,514.16 = 17,383.40 : x
  2. Step 2: Convert to fraction form
    31,530.64/43,514.16 = 17,383.40/x
  3. Step 3: Cross multiply
    31,530.64x = 43,514.16 × 17,383.40
  4. Step 4: Simplify right side
    31,530.64x = 756,424,048.94
  5. Step 5: Solve for x
    x = 756,424,048.94/31,530.64
  6. Step 6: Final answer
    x = 23,990.13

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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.