Home / 21,785.67-32,665.34-9,775.63

Finding the Fourth Proportional to 21,785.67, 32,665.34 and 9,775.63

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Solution

The fourth proportional to 21,785.67, 32,665.34 and 9,775.63 is: 14,657.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,785.67 : 32,665.34 = 9,775.63 : x
  2. Step 2: Convert to fraction form
    21,785.67/32,665.34 = 9,775.63/x
  3. Step 3: Cross multiply
    21,785.67x = 32,665.34 × 9,775.63
  4. Step 4: Simplify right side
    21,785.67x = 319,324,277.66
  5. Step 5: Solve for x
    x = 319,324,277.66/21,785.67
  6. Step 6: Final answer
    x = 14,657.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.