Home / 21,790.43-32,686.80-6,998.19

Finding the Fourth Proportional to 21,790.43, 32,686.80 and 6,998.19

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Solution

The fourth proportional to 21,790.43, 32,686.80 and 6,998.19 is: 10,497.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,790.43 : 32,686.80 = 6,998.19 : x
  2. Step 2: Convert to fraction form
    21,790.43/32,686.80 = 6,998.19/x
  3. Step 3: Cross multiply
    21,790.43x = 32,686.80 × 6,998.19
  4. Step 4: Simplify right side
    21,790.43x = 228,748,436.89
  5. Step 5: Solve for x
    x = 228,748,436.89/21,790.43
  6. Step 6: Final answer
    x = 10,497.66

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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.