Home / 38,885.25-53,661.77-21,889.76

Finding the Fourth Proportional to 38,885.25, 53,661.77 and 21,889.76

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Solution

The fourth proportional to 38,885.25, 53,661.77 and 21,889.76 is: 30,207.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,885.25 : 53,661.77 = 21,889.76 : x
  2. Step 2: Convert to fraction form
    38,885.25/53,661.77 = 21,889.76/x
  3. Step 3: Cross multiply
    38,885.25x = 53,661.77 × 21,889.76
  4. Step 4: Simplify right side
    38,885.25x = 1,174,642,888.72
  5. Step 5: Solve for x
    x = 1,174,642,888.72/38,885.25
  6. Step 6: Final answer
    x = 30,207.93

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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.