Home / 21,035.24-29,031.42-13,482.84

Finding the Fourth Proportional to 21,035.24, 29,031.42 and 13,482.84

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Solution

The fourth proportional to 21,035.24, 29,031.42 and 13,482.84 is: 18,608.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,035.24 : 29,031.42 = 13,482.84 : x
  2. Step 2: Convert to fraction form
    21,035.24/29,031.42 = 13,482.84/x
  3. Step 3: Cross multiply
    21,035.24x = 29,031.42 × 13,482.84
  4. Step 4: Simplify right side
    21,035.24x = 391,425,990.83
  5. Step 5: Solve for x
    x = 391,425,990.83/21,035.24
  6. Step 6: Final answer
    x = 18,608.11

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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.