Home / 21,554.35-29,740.55-12,600.12

Finding the Fourth Proportional to 21,554.35, 29,740.55 and 12,600.12

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Solution

The fourth proportional to 21,554.35, 29,740.55 and 12,600.12 is: 17,385.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,554.35 : 29,740.55 = 12,600.12 : x
  2. Step 2: Convert to fraction form
    21,554.35/29,740.55 = 12,600.12/x
  3. Step 3: Cross multiply
    21,554.35x = 29,740.55 × 12,600.12
  4. Step 4: Simplify right side
    21,554.35x = 374,734,498.87
  5. Step 5: Solve for x
    x = 374,734,498.87/21,554.35
  6. Step 6: Final answer
    x = 17,385.56

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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.