Home / 21,703.08-29,949.99-12,751.40

Finding the Fourth Proportional to 21,703.08, 29,949.99 and 12,751.40

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Solution

The fourth proportional to 21,703.08, 29,949.99 and 12,751.40 is: 17,596.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,703.08 : 29,949.99 = 12,751.40 : x
  2. Step 2: Convert to fraction form
    21,703.08/29,949.99 = 12,751.40/x
  3. Step 3: Cross multiply
    21,703.08x = 29,949.99 × 12,751.40
  4. Step 4: Simplify right side
    21,703.08x = 381,904,302.49
  5. Step 5: Solve for x
    x = 381,904,302.49/21,703.08
  6. Step 6: Final answer
    x = 17,596.78

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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.