Home / 28,506.22-39,335.18-15,757.68

Finding the Fourth Proportional to 28,506.22, 39,335.18 and 15,757.68

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Solution

The fourth proportional to 28,506.22, 39,335.18 and 15,757.68 is: 21,743.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,506.22 : 39,335.18 = 15,757.68 : x
  2. Step 2: Convert to fraction form
    28,506.22/39,335.18 = 15,757.68/x
  3. Step 3: Cross multiply
    28,506.22x = 39,335.18 × 15,757.68
  4. Step 4: Simplify right side
    28,506.22x = 619,831,179.18
  5. Step 5: Solve for x
    x = 619,831,179.18/28,506.22
  6. Step 6: Final answer
    x = 21,743.72

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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.