Home / 19,656.21-29,434.04-12,972.49

Finding the Fourth Proportional to 19,656.21, 29,434.04 and 12,972.49

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Solution

The fourth proportional to 19,656.21, 29,434.04 and 12,972.49 is: 19,425.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,656.21 : 29,434.04 = 12,972.49 : x
  2. Step 2: Convert to fraction form
    19,656.21/29,434.04 = 12,972.49/x
  3. Step 3: Cross multiply
    19,656.21x = 29,434.04 × 12,972.49
  4. Step 4: Simplify right side
    19,656.21x = 381,832,789.56
  5. Step 5: Solve for x
    x = 381,832,789.56/19,656.21
  6. Step 6: Final answer
    x = 19,425.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.