Home / 21,265.34-29,345.67-11,833.70

Finding the Fourth Proportional to 21,265.34, 29,345.67 and 11,833.70

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Solution

The fourth proportional to 21,265.34, 29,345.67 and 11,833.70 is: 16,330.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,265.34 : 29,345.67 = 11,833.70 : x
  2. Step 2: Convert to fraction form
    21,265.34/29,345.67 = 11,833.70/x
  3. Step 3: Cross multiply
    21,265.34x = 29,345.67 × 11,833.70
  4. Step 4: Simplify right side
    21,265.34x = 347,267,855.08
  5. Step 5: Solve for x
    x = 347,267,855.08/21,265.34
  6. Step 6: Final answer
    x = 16,330.23

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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.