Home / 21,655.04-29,883.92-11,719.04

Finding the Fourth Proportional to 21,655.04, 29,883.92 and 11,719.04

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Solution

The fourth proportional to 21,655.04, 29,883.92 and 11,719.04 is: 16,172.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,655.04 : 29,883.92 = 11,719.04 : x
  2. Step 2: Convert to fraction form
    21,655.04/29,883.92 = 11,719.04/x
  3. Step 3: Cross multiply
    21,655.04x = 29,883.92 × 11,719.04
  4. Step 4: Simplify right side
    21,655.04x = 350,210,853.84
  5. Step 5: Solve for x
    x = 350,210,853.84/21,655.04
  6. Step 6: Final answer
    x = 16,172.26

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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.