Home / 21,610.91-32,416.37-6,820.98

Finding the Fourth Proportional to 21,610.91, 32,416.37 and 6,820.98

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Solution

The fourth proportional to 21,610.91, 32,416.37 and 6,820.98 is: 10,231.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,610.91 : 32,416.37 = 6,820.98 : x
  2. Step 2: Convert to fraction form
    21,610.91/32,416.37 = 6,820.98/x
  3. Step 3: Cross multiply
    21,610.91x = 32,416.37 × 6,820.98
  4. Step 4: Simplify right side
    21,610.91x = 221,111,411.44
  5. Step 5: Solve for x
    x = 221,111,411.44/21,610.91
  6. Step 6: Final answer
    x = 10,231.47

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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.