Home / 21,012.77-29,001.87-12,066.41

Finding the Fourth Proportional to 21,012.77, 29,001.87 and 12,066.41

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Solution

The fourth proportional to 21,012.77, 29,001.87 and 12,066.41 is: 16,654.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,012.77 : 29,001.87 = 12,066.41 : x
  2. Step 2: Convert to fraction form
    21,012.77/29,001.87 = 12,066.41/x
  3. Step 3: Cross multiply
    21,012.77x = 29,001.87 × 12,066.41
  4. Step 4: Simplify right side
    21,012.77x = 349,948,309.18
  5. Step 5: Solve for x
    x = 349,948,309.18/21,012.77
  6. Step 6: Final answer
    x = 16,654.08

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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.