Home / 21,842.13-32,761.47-7,800.69

Finding the Fourth Proportional to 21,842.13, 32,761.47 and 7,800.69

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Solution

The fourth proportional to 21,842.13, 32,761.47 and 7,800.69 is: 11,700.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,842.13 : 32,761.47 = 7,800.69 : x
  2. Step 2: Convert to fraction form
    21,842.13/32,761.47 = 7,800.69/x
  3. Step 3: Cross multiply
    21,842.13x = 32,761.47 × 7,800.69
  4. Step 4: Simplify right side
    21,842.13x = 255,562,157.70
  5. Step 5: Solve for x
    x = 255,562,157.70/21,842.13
  6. Step 6: Final answer
    x = 11,700.42

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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.