Home / 31,403.79-43,337.21-17,256.62

Finding the Fourth Proportional to 31,403.79, 43,337.21 and 17,256.62

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Solution

The fourth proportional to 31,403.79, 43,337.21 and 17,256.62 is: 23,814.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,403.79 : 43,337.21 = 17,256.62 : x
  2. Step 2: Convert to fraction form
    31,403.79/43,337.21 = 17,256.62/x
  3. Step 3: Cross multiply
    31,403.79x = 43,337.21 × 17,256.62
  4. Step 4: Simplify right side
    31,403.79x = 747,853,786.89
  5. Step 5: Solve for x
    x = 747,853,786.89/31,403.79
  6. Step 6: Final answer
    x = 23,814.13

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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.