Home / 31,432.74-43,379.34-17,285.58

Finding the Fourth Proportional to 31,432.74, 43,379.34 and 17,285.58

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Solution

The fourth proportional to 31,432.74, 43,379.34 and 17,285.58 is: 23,855.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,432.74 : 43,379.34 = 17,285.58 : x
  2. Step 2: Convert to fraction form
    31,432.74/43,379.34 = 17,285.58/x
  3. Step 3: Cross multiply
    31,432.74x = 43,379.34 × 17,285.58
  4. Step 4: Simplify right side
    31,432.74x = 749,837,051.92
  5. Step 5: Solve for x
    x = 749,837,051.92/31,432.74
  6. Step 6: Final answer
    x = 23,855.29

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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.