Home / 21,733.02-29,991.03-12,781.10

Finding the Fourth Proportional to 21,733.02, 29,991.03 and 12,781.10

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Solution

The fourth proportional to 21,733.02, 29,991.03 and 12,781.10 is: 17,637.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,733.02 : 29,991.03 = 12,781.10 : x
  2. Step 2: Convert to fraction form
    21,733.02/29,991.03 = 12,781.10/x
  3. Step 3: Cross multiply
    21,733.02x = 29,991.03 × 12,781.10
  4. Step 4: Simplify right side
    21,733.02x = 383,318,203.58
  5. Step 5: Solve for x
    x = 383,318,203.58/21,733.02
  6. Step 6: Final answer
    x = 17,637.59

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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.