Home / 19,722.05-27,201.05-12,649.01

Finding the Fourth Proportional to 19,722.05, 27,201.05 and 12,649.01

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Solution

The fourth proportional to 19,722.05, 27,201.05 and 12,649.01 is: 17,445.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,722.05 : 27,201.05 = 12,649.01 : x
  2. Step 2: Convert to fraction form
    19,722.05/27,201.05 = 12,649.01/x
  3. Step 3: Cross multiply
    19,722.05x = 27,201.05 × 12,649.01
  4. Step 4: Simplify right side
    19,722.05x = 344,066,290.22
  5. Step 5: Solve for x
    x = 344,066,290.22/19,722.05
  6. Step 6: Final answer
    x = 17,445.77

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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.