Home / 30,257.34-45,355.05-10,519.68

Finding the Fourth Proportional to 30,257.34, 45,355.05 and 10,519.68

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Solution

The fourth proportional to 30,257.34, 45,355.05 and 10,519.68 is: 15,768.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,257.34 : 45,355.05 = 10,519.68 : x
  2. Step 2: Convert to fraction form
    30,257.34/45,355.05 = 10,519.68/x
  3. Step 3: Cross multiply
    30,257.34x = 45,355.05 × 10,519.68
  4. Step 4: Simplify right side
    30,257.34x = 477,120,612.38
  5. Step 5: Solve for x
    x = 477,120,612.38/30,257.34
  6. Step 6: Final answer
    x = 15,768.76

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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.