Home / 21,775.96-32,663.40-6,985.92

Finding the Fourth Proportional to 21,775.96, 32,663.40 and 6,985.92

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Solution

The fourth proportional to 21,775.96, 32,663.40 and 6,985.92 is: 10,478.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,775.96 : 32,663.40 = 6,985.92 : x
  2. Step 2: Convert to fraction form
    21,775.96/32,663.40 = 6,985.92/x
  3. Step 3: Cross multiply
    21,775.96x = 32,663.40 × 6,985.92
  4. Step 4: Simplify right side
    21,775.96x = 228,183,899.33
  5. Step 5: Solve for x
    x = 228,183,899.33/21,775.96
  6. Step 6: Final answer
    x = 10,478.71

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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.