Home / 21,761.67-30,040.29-14,697.66

Finding the Fourth Proportional to 21,761.67, 30,040.29 and 14,697.66

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Solution

The fourth proportional to 21,761.67, 30,040.29 and 14,697.66 is: 20,288.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,761.67 : 30,040.29 = 14,697.66 : x
  2. Step 2: Convert to fraction form
    21,761.67/30,040.29 = 14,697.66/x
  3. Step 3: Cross multiply
    21,761.67x = 30,040.29 × 14,697.66
  4. Step 4: Simplify right side
    21,761.67x = 441,521,968.72
  5. Step 5: Solve for x
    x = 441,521,968.72/21,761.67
  6. Step 6: Final answer
    x = 20,288.97

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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.