Home / 19,933.53-29,721.56-19,213.20

Finding the Fourth Proportional to 19,933.53, 29,721.56 and 19,213.20

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Solution

The fourth proportional to 19,933.53, 29,721.56 and 19,213.20 is: 28,647.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,933.53 : 29,721.56 = 19,213.20 : x
  2. Step 2: Convert to fraction form
    19,933.53/29,721.56 = 19,213.20/x
  3. Step 3: Cross multiply
    19,933.53x = 29,721.56 × 19,213.20
  4. Step 4: Simplify right side
    19,933.53x = 571,046,180.53
  5. Step 5: Solve for x
    x = 571,046,180.53/19,933.53
  6. Step 6: Final answer
    x = 28,647.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.