Home / 21,070.44-31,610.22-6,280.55

Finding the Fourth Proportional to 21,070.44, 31,610.22 and 6,280.55

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Solution

The fourth proportional to 21,070.44, 31,610.22 and 6,280.55 is: 9,422.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,070.44 : 31,610.22 = 6,280.55 : x
  2. Step 2: Convert to fraction form
    21,070.44/31,610.22 = 6,280.55/x
  3. Step 3: Cross multiply
    21,070.44x = 31,610.22 × 6,280.55
  4. Step 4: Simplify right side
    21,070.44x = 198,529,409.17
  5. Step 5: Solve for x
    x = 198,529,409.17/21,070.44
  6. Step 6: Final answer
    x = 9,422.18

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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.