Home / 21,373.12-29,467.92-13,806.64

Finding the Fourth Proportional to 21,373.12, 29,467.92 and 13,806.64

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Solution

The fourth proportional to 21,373.12, 29,467.92 and 13,806.64 is: 19,035.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,373.12 : 29,467.92 = 13,806.64 : x
  2. Step 2: Convert to fraction form
    21,373.12/29,467.92 = 13,806.64/x
  3. Step 3: Cross multiply
    21,373.12x = 29,467.92 × 13,806.64
  4. Step 4: Simplify right side
    21,373.12x = 406,852,962.99
  5. Step 5: Solve for x
    x = 406,852,962.99/21,373.12
  6. Step 6: Final answer
    x = 19,035.73

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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.