Home / 30,118.28-45,176.97-9,341.78

Finding the Fourth Proportional to 30,118.28, 45,176.97 and 9,341.78

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Solution

The fourth proportional to 30,118.28, 45,176.97 and 9,341.78 is: 14,012.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,118.28 : 45,176.97 = 9,341.78 : x
  2. Step 2: Convert to fraction form
    30,118.28/45,176.97 = 9,341.78/x
  3. Step 3: Cross multiply
    30,118.28x = 45,176.97 × 9,341.78
  4. Step 4: Simplify right side
    30,118.28x = 422,033,314.81
  5. Step 5: Solve for x
    x = 422,033,314.81/30,118.28
  6. Step 6: Final answer
    x = 14,012.53

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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.