Home / 31,328.89-43,236.16-17,899.85

Finding the Fourth Proportional to 31,328.89, 43,236.16 and 17,899.85

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Solution

The fourth proportional to 31,328.89, 43,236.16 and 17,899.85 is: 24,703.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,328.89 : 43,236.16 = 17,899.85 : x
  2. Step 2: Convert to fraction form
    31,328.89/43,236.16 = 17,899.85/x
  3. Step 3: Cross multiply
    31,328.89x = 43,236.16 × 17,899.85
  4. Step 4: Simplify right side
    31,328.89x = 773,920,778.58
  5. Step 5: Solve for x
    x = 773,920,778.58/31,328.89
  6. Step 6: Final answer
    x = 24,703.10

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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.