Home / 28,094.34-38,770.19-15,519.09

Finding the Fourth Proportional to 28,094.34, 38,770.19 and 15,519.09

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Solution

The fourth proportional to 28,094.34, 38,770.19 and 15,519.09 is: 21,416.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,094.34 : 38,770.19 = 15,519.09 : x
  2. Step 2: Convert to fraction form
    28,094.34/38,770.19 = 15,519.09/x
  3. Step 3: Cross multiply
    28,094.34x = 38,770.19 × 15,519.09
  4. Step 4: Simplify right side
    28,094.34x = 601,678,281.21
  5. Step 5: Solve for x
    x = 601,678,281.21/28,094.34
  6. Step 6: Final answer
    x = 21,416.35

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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.