Home / 21,060.94-31,590.41-5,266.07

Finding the Fourth Proportional to 21,060.94, 31,590.41 and 5,266.07

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Solution

The fourth proportional to 21,060.94, 31,590.41 and 5,266.07 is: 7,898.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,060.94 : 31,590.41 = 5,266.07 : x
  2. Step 2: Convert to fraction form
    21,060.94/31,590.41 = 5,266.07/x
  3. Step 3: Cross multiply
    21,060.94x = 31,590.41 × 5,266.07
  4. Step 4: Simplify right side
    21,060.94x = 166,357,284.06
  5. Step 5: Solve for x
    x = 166,357,284.06/21,060.94
  6. Step 6: Final answer
    x = 7,898.86

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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.