Home / 28,566.96-39,422.22-15,820.44

Finding the Fourth Proportional to 28,566.96, 39,422.22 and 15,820.44

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Solution

The fourth proportional to 28,566.96, 39,422.22 and 15,820.44 is: 21,832.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,566.96 : 39,422.22 = 15,820.44 : x
  2. Step 2: Convert to fraction form
    28,566.96/39,422.22 = 15,820.44/x
  3. Step 3: Cross multiply
    28,566.96x = 39,422.22 × 15,820.44
  4. Step 4: Simplify right side
    28,566.96x = 623,676,866.18
  5. Step 5: Solve for x
    x = 623,676,866.18/28,566.96
  6. Step 6: Final answer
    x = 21,832.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.