Home / 38,881.05-53,655.24-21,885.33

Finding the Fourth Proportional to 38,881.05, 53,655.24 and 21,885.33

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Solution

The fourth proportional to 38,881.05, 53,655.24 and 21,885.33 is: 30,201.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,881.05 : 53,655.24 = 21,885.33 : x
  2. Step 2: Convert to fraction form
    38,881.05/53,655.24 = 21,885.33/x
  3. Step 3: Cross multiply
    38,881.05x = 53,655.24 × 21,885.33
  4. Step 4: Simplify right side
    38,881.05x = 1,174,262,633.63
  5. Step 5: Solve for x
    x = 1,174,262,633.63/38,881.05
  6. Step 6: Final answer
    x = 30,201.41

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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.