Home / 21,191.04-29,249.01-14,479.38

Finding the Fourth Proportional to 21,191.04, 29,249.01 and 14,479.38

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Solution

The fourth proportional to 21,191.04, 29,249.01 and 14,479.38 is: 19,985.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,191.04 : 29,249.01 = 14,479.38 : x
  2. Step 2: Convert to fraction form
    21,191.04/29,249.01 = 14,479.38/x
  3. Step 3: Cross multiply
    21,191.04x = 29,249.01 × 14,479.38
  4. Step 4: Simplify right side
    21,191.04x = 423,507,530.41
  5. Step 5: Solve for x
    x = 423,507,530.41/21,191.04
  6. Step 6: Final answer
    x = 19,985.22

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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.