Home / 30,279.34-45,419.26-10,557.86

Finding the Fourth Proportional to 30,279.34, 45,419.26 and 10,557.86

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Solution

The fourth proportional to 30,279.34, 45,419.26 and 10,557.86 is: 15,836.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,279.34 : 45,419.26 = 10,557.86 : x
  2. Step 2: Convert to fraction form
    30,279.34/45,419.26 = 10,557.86/x
  3. Step 3: Cross multiply
    30,279.34x = 45,419.26 × 10,557.86
  4. Step 4: Simplify right side
    30,279.34x = 479,530,188.38
  5. Step 5: Solve for x
    x = 479,530,188.38/30,279.34
  6. Step 6: Final answer
    x = 15,836.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.