Home / 21,269.27-31,903.91-5,686.89

Finding the Fourth Proportional to 21,269.27, 31,903.91 and 5,686.89

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Solution

The fourth proportional to 21,269.27, 31,903.91 and 5,686.89 is: 8,530.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,269.27 : 31,903.91 = 5,686.89 : x
  2. Step 2: Convert to fraction form
    21,269.27/31,903.91 = 5,686.89/x
  3. Step 3: Cross multiply
    21,269.27x = 31,903.91 × 5,686.89
  4. Step 4: Simplify right side
    21,269.27x = 181,433,998.31
  5. Step 5: Solve for x
    x = 181,433,998.31/21,269.27
  6. Step 6: Final answer
    x = 8,530.34

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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.