Home / 20,681.80-31,027.56-5,890.93

Finding the Fourth Proportional to 20,681.80, 31,027.56 and 5,890.93

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Solution

The fourth proportional to 20,681.80, 31,027.56 and 5,890.93 is: 8,837.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,681.80 : 31,027.56 = 5,890.93 : x
  2. Step 2: Convert to fraction form
    20,681.80/31,027.56 = 5,890.93/x
  3. Step 3: Cross multiply
    20,681.80x = 31,027.56 × 5,890.93
  4. Step 4: Simplify right side
    20,681.80x = 182,781,084.37
  5. Step 5: Solve for x
    x = 182,781,084.37/20,681.80
  6. Step 6: Final answer
    x = 8,837.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.