Home / 19,607.20-29,372.40-11,792.80

Finding the Fourth Proportional to 19,607.20, 29,372.40 and 11,792.80

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Solution

The fourth proportional to 19,607.20, 29,372.40 and 11,792.80 is: 17,666.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,607.20 : 29,372.40 = 11,792.80 : x
  2. Step 2: Convert to fraction form
    19,607.20/29,372.40 = 11,792.80/x
  3. Step 3: Cross multiply
    19,607.20x = 29,372.40 × 11,792.80
  4. Step 4: Simplify right side
    19,607.20x = 346,382,838.72
  5. Step 5: Solve for x
    x = 346,382,838.72/19,607.20
  6. Step 6: Final answer
    x = 17,666.10

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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.