Home / 19,722.55-27,201.73-12,649.51

Finding the Fourth Proportional to 19,722.55, 27,201.73 and 12,649.51

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Solution

The fourth proportional to 19,722.55, 27,201.73 and 12,649.51 is: 17,446.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,722.55 : 27,201.73 = 12,649.51 : x
  2. Step 2: Convert to fraction form
    19,722.55/27,201.73 = 12,649.51/x
  3. Step 3: Cross multiply
    19,722.55x = 27,201.73 × 12,649.51
  4. Step 4: Simplify right side
    19,722.55x = 344,088,555.65
  5. Step 5: Solve for x
    x = 344,088,555.65/19,722.55
  6. Step 6: Final answer
    x = 17,446.45

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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.