Home / 28,094.56-38,770.32-15,519.28

Finding the Fourth Proportional to 28,094.56, 38,770.32 and 15,519.28

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Solution

The fourth proportional to 28,094.56, 38,770.32 and 15,519.28 is: 21,416.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,094.56 : 38,770.32 = 15,519.28 : x
  2. Step 2: Convert to fraction form
    28,094.56/38,770.32 = 15,519.28/x
  3. Step 3: Cross multiply
    28,094.56x = 38,770.32 × 15,519.28
  4. Step 4: Simplify right side
    28,094.56x = 601,687,451.77
  5. Step 5: Solve for x
    x = 601,687,451.77/28,094.56
  6. Step 6: Final answer
    x = 21,416.51

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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.