Home / 15,881.22-21,903.75-10,566.81

Finding the Fourth Proportional to 15,881.22, 21,903.75 and 10,566.81

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Solution

The fourth proportional to 15,881.22, 21,903.75 and 10,566.81 is: 14,573.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,881.22 : 21,903.75 = 10,566.81 : x
  2. Step 2: Convert to fraction form
    15,881.22/21,903.75 = 10,566.81/x
  3. Step 3: Cross multiply
    15,881.22x = 21,903.75 × 10,566.81
  4. Step 4: Simplify right side
    15,881.22x = 231,452,764.54
  5. Step 5: Solve for x
    x = 231,452,764.54/15,881.22
  6. Step 6: Final answer
    x = 14,573.99

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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.