Home / 21,165.02-29,207.81-11,605.06

Finding the Fourth Proportional to 21,165.02, 29,207.81 and 11,605.06

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Solution

The fourth proportional to 21,165.02, 29,207.81 and 11,605.06 is: 16,015.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,165.02 : 29,207.81 = 11,605.06 : x
  2. Step 2: Convert to fraction form
    21,165.02/29,207.81 = 11,605.06/x
  3. Step 3: Cross multiply
    21,165.02x = 29,207.81 × 11,605.06
  4. Step 4: Simplify right side
    21,165.02x = 338,958,223.47
  5. Step 5: Solve for x
    x = 338,958,223.47/21,165.02
  6. Step 6: Final answer
    x = 16,015.02

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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.