Home / 19,616.81-27,071.22-10,664.28

Finding the Fourth Proportional to 19,616.81, 27,071.22 and 10,664.28

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Solution

The fourth proportional to 19,616.81, 27,071.22 and 10,664.28 is: 14,716.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,616.81 : 27,071.22 = 10,664.28 : x
  2. Step 2: Convert to fraction form
    19,616.81/27,071.22 = 10,664.28/x
  3. Step 3: Cross multiply
    19,616.81x = 27,071.22 × 10,664.28
  4. Step 4: Simplify right side
    19,616.81x = 288,695,070.02
  5. Step 5: Solve for x
    x = 288,695,070.02/19,616.81
  6. Step 6: Final answer
    x = 14,716.72

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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.