Home / 28,335.60-39,102.35-15,414.45

Finding the Fourth Proportional to 28,335.60, 39,102.35 and 15,414.45

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Solution

The fourth proportional to 28,335.60, 39,102.35 and 15,414.45 is: 21,271.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,335.60 : 39,102.35 = 15,414.45 : x
  2. Step 2: Convert to fraction form
    28,335.60/39,102.35 = 15,414.45/x
  3. Step 3: Cross multiply
    28,335.60x = 39,102.35 × 15,414.45
  4. Step 4: Simplify right side
    28,335.60x = 602,741,180.42
  5. Step 5: Solve for x
    x = 602,741,180.42/28,335.60
  6. Step 6: Final answer
    x = 21,271.51

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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.