Home / 19,555.46-27,008.80-13,256.90

Finding the Fourth Proportional to 19,555.46, 27,008.80 and 13,256.90

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Solution

The fourth proportional to 19,555.46, 27,008.80 and 13,256.90 is: 18,309.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,555.46 : 27,008.80 = 13,256.90 : x
  2. Step 2: Convert to fraction form
    19,555.46/27,008.80 = 13,256.90/x
  3. Step 3: Cross multiply
    19,555.46x = 27,008.80 × 13,256.90
  4. Step 4: Simplify right side
    19,555.46x = 358,052,842.25
  5. Step 5: Solve for x
    x = 358,052,842.25/19,555.46
  6. Step 6: Final answer
    x = 18,309.61

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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.