Home / 22,739.56-31,319.88-19,758.76

Finding the Fourth Proportional to 22,739.56, 31,319.88 and 19,758.76

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Solution

The fourth proportional to 22,739.56, 31,319.88 and 19,758.76 is: 27,214.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,739.56 : 31,319.88 = 19,758.76 : x
  2. Step 2: Convert to fraction form
    22,739.56/31,319.88 = 19,758.76/x
  3. Step 3: Cross multiply
    22,739.56x = 31,319.88 × 19,758.76
  4. Step 4: Simplify right side
    22,739.56x = 618,841,992.15
  5. Step 5: Solve for x
    x = 618,841,992.15/22,739.56
  6. Step 6: Final answer
    x = 27,214.33

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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.