Home / 19,685.20-27,165.28-10,733.12

Finding the Fourth Proportional to 19,685.20, 27,165.28 and 10,733.12

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Solution

The fourth proportional to 19,685.20, 27,165.28 and 10,733.12 is: 14,811.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,685.20 : 27,165.28 = 10,733.12 : x
  2. Step 2: Convert to fraction form
    19,685.20/27,165.28 = 10,733.12/x
  3. Step 3: Cross multiply
    19,685.20x = 27,165.28 × 10,733.12
  4. Step 4: Simplify right side
    19,685.20x = 291,568,210.07
  5. Step 5: Solve for x
    x = 291,568,210.07/19,685.20
  6. Step 6: Final answer
    x = 14,811.54

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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.