Home / 31,157.96-42,998.72-17,010.90

Finding the Fourth Proportional to 31,157.96, 42,998.72 and 17,010.90

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Solution

The fourth proportional to 31,157.96, 42,998.72 and 17,010.90 is: 23,475.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,157.96 : 42,998.72 = 17,010.90 : x
  2. Step 2: Convert to fraction form
    31,157.96/42,998.72 = 17,010.90/x
  3. Step 3: Cross multiply
    31,157.96x = 42,998.72 × 17,010.90
  4. Step 4: Simplify right side
    31,157.96x = 731,446,840.99
  5. Step 5: Solve for x
    x = 731,446,840.99/31,157.96
  6. Step 6: Final answer
    x = 23,475.44

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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.