Home / 21,267.59-31,898.96-5,686.43

Finding the Fourth Proportional to 21,267.59, 31,898.96 and 5,686.43

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Solution

The fourth proportional to 21,267.59, 31,898.96 and 5,686.43 is: 8,529.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,267.59 : 31,898.96 = 5,686.43 : x
  2. Step 2: Convert to fraction form
    21,267.59/31,898.96 = 5,686.43/x
  3. Step 3: Cross multiply
    21,267.59x = 31,898.96 × 5,686.43
  4. Step 4: Simplify right side
    21,267.59x = 181,391,174.68
  5. Step 5: Solve for x
    x = 181,391,174.68/21,267.59
  6. Step 6: Final answer
    x = 8,529.00

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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.