Home / 21,146.57-29,182.24-11,587.05

Finding the Fourth Proportional to 21,146.57, 29,182.24 and 11,587.05

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Solution

The fourth proportional to 21,146.57, 29,182.24 and 11,587.05 is: 15,990.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,146.57 : 29,182.24 = 11,587.05 : x
  2. Step 2: Convert to fraction form
    21,146.57/29,182.24 = 11,587.05/x
  3. Step 3: Cross multiply
    21,146.57x = 29,182.24 × 11,587.05
  4. Step 4: Simplify right side
    21,146.57x = 338,136,088.48
  5. Step 5: Solve for x
    x = 338,136,088.48/21,146.57
  6. Step 6: Final answer
    x = 15,990.12

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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.