Home / 31,834.86-43,931.80-17,687.40

Finding the Fourth Proportional to 31,834.86, 43,931.80 and 17,687.40

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Solution

The fourth proportional to 31,834.86, 43,931.80 and 17,687.40 is: 24,408.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,834.86 : 43,931.80 = 17,687.40 : x
  2. Step 2: Convert to fraction form
    31,834.86/43,931.80 = 17,687.40/x
  3. Step 3: Cross multiply
    31,834.86x = 43,931.80 × 17,687.40
  4. Step 4: Simplify right side
    31,834.86x = 777,039,319.32
  5. Step 5: Solve for x
    x = 777,039,319.32/31,834.86
  6. Step 6: Final answer
    x = 24,408.44

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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.