Home / 21,703.90-29,952.87-12,144.69

Finding the Fourth Proportional to 21,703.90, 29,952.87 and 12,144.69

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Solution

The fourth proportional to 21,703.90, 29,952.87 and 12,144.69 is: 16,760.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,703.90 : 29,952.87 = 12,144.69 : x
  2. Step 2: Convert to fraction form
    21,703.90/29,952.87 = 12,144.69/x
  3. Step 3: Cross multiply
    21,703.90x = 29,952.87 × 12,144.69
  4. Step 4: Simplify right side
    21,703.90x = 363,768,320.76
  5. Step 5: Solve for x
    x = 363,768,320.76/21,703.90
  6. Step 6: Final answer
    x = 16,760.50

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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.