Home / 19,722.22-27,216.15-10,769.86

Finding the Fourth Proportional to 19,722.22, 27,216.15 and 10,769.86

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Solution

The fourth proportional to 19,722.22, 27,216.15 and 10,769.86 is: 14,862.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,722.22 : 27,216.15 = 10,769.86 : x
  2. Step 2: Convert to fraction form
    19,722.22/27,216.15 = 10,769.86/x
  3. Step 3: Cross multiply
    19,722.22x = 27,216.15 × 10,769.86
  4. Step 4: Simplify right side
    19,722.22x = 293,114,125.24
  5. Step 5: Solve for x
    x = 293,114,125.24/19,722.22
  6. Step 6: Final answer
    x = 14,862.13

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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.