Home / 21,267.24-29,348.55-11,706.91

Finding the Fourth Proportional to 21,267.24, 29,348.55 and 11,706.91

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Solution

The fourth proportional to 21,267.24, 29,348.55 and 11,706.91 is: 16,155.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,267.24 : 29,348.55 = 11,706.91 : x
  2. Step 2: Convert to fraction form
    21,267.24/29,348.55 = 11,706.91/x
  3. Step 3: Cross multiply
    21,267.24x = 29,348.55 × 11,706.91
  4. Step 4: Simplify right side
    21,267.24x = 343,580,833.48
  5. Step 5: Solve for x
    x = 343,580,833.48/21,267.24
  6. Step 6: Final answer
    x = 16,155.40

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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.