Home / 21,332.10-29,438.02-11,902.26

Finding the Fourth Proportional to 21,332.10, 29,438.02 and 11,902.26

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Solution

The fourth proportional to 21,332.10, 29,438.02 and 11,902.26 is: 16,424.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,332.10 : 29,438.02 = 11,902.26 : x
  2. Step 2: Convert to fraction form
    21,332.10/29,438.02 = 11,902.26/x
  3. Step 3: Cross multiply
    21,332.10x = 29,438.02 × 11,902.26
  4. Step 4: Simplify right side
    21,332.10x = 350,378,967.93
  5. Step 5: Solve for x
    x = 350,378,967.93/21,332.10
  6. Step 6: Final answer
    x = 16,424.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.