Home / 30,154.20-45,213.06-13,511.16

Finding the Fourth Proportional to 30,154.20, 45,213.06 and 13,511.16

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Solution

The fourth proportional to 30,154.20, 45,213.06 and 13,511.16 is: 20,258.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,154.20 : 45,213.06 = 13,511.16 : x
  2. Step 2: Convert to fraction form
    30,154.20/45,213.06 = 13,511.16/x
  3. Step 3: Cross multiply
    30,154.20x = 45,213.06 × 13,511.16
  4. Step 4: Simplify right side
    30,154.20x = 610,880,887.75
  5. Step 5: Solve for x
    x = 610,880,887.75/30,154.20
  6. Step 6: Final answer
    x = 20,258.57

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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.