Home / 21,301.23-31,951.92-6,510.09

Finding the Fourth Proportional to 21,301.23, 31,951.92 and 6,510.09

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Solution

The fourth proportional to 21,301.23, 31,951.92 and 6,510.09 is: 9,765.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,301.23 : 31,951.92 = 6,510.09 : x
  2. Step 2: Convert to fraction form
    21,301.23/31,951.92 = 6,510.09/x
  3. Step 3: Cross multiply
    21,301.23x = 31,951.92 × 6,510.09
  4. Step 4: Simplify right side
    21,301.23x = 208,009,874.87
  5. Step 5: Solve for x
    x = 208,009,874.87/21,301.23
  6. Step 6: Final answer
    x = 9,765.16

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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.