Home / 31,820.90-43,892.67-19,550.93

Finding the Fourth Proportional to 31,820.90, 43,892.67 and 19,550.93

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Solution

The fourth proportional to 31,820.90, 43,892.67 and 19,550.93 is: 26,967.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,820.90 : 43,892.67 = 19,550.93 : x
  2. Step 2: Convert to fraction form
    31,820.90/43,892.67 = 19,550.93/x
  3. Step 3: Cross multiply
    31,820.90x = 43,892.67 × 19,550.93
  4. Step 4: Simplify right side
    31,820.90x = 858,142,518.68
  5. Step 5: Solve for x
    x = 858,142,518.68/31,820.90
  6. Step 6: Final answer
    x = 26,967.89

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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.