Home / 19,953.36-29,891.76-11,161.68

Finding the Fourth Proportional to 19,953.36, 29,891.76 and 11,161.68

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Solution

The fourth proportional to 19,953.36, 29,891.76 and 11,161.68 is: 16,721.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,953.36 : 29,891.76 = 11,161.68 : x
  2. Step 2: Convert to fraction form
    19,953.36/29,891.76 = 11,161.68/x
  3. Step 3: Cross multiply
    19,953.36x = 29,891.76 × 11,161.68
  4. Step 4: Simplify right side
    19,953.36x = 333,642,259.76
  5. Step 5: Solve for x
    x = 333,642,259.76/19,953.36
  6. Step 6: Final answer
    x = 16,721.11

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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.