Home / 30,138.23-45,207.33-10,146.04

Finding the Fourth Proportional to 30,138.23, 45,207.33 and 10,146.04

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Solution

The fourth proportional to 30,138.23, 45,207.33 and 10,146.04 is: 15,219.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,138.23 : 45,207.33 = 10,146.04 : x
  2. Step 2: Convert to fraction form
    30,138.23/45,207.33 = 10,146.04/x
  3. Step 3: Cross multiply
    30,138.23x = 45,207.33 × 10,146.04
  4. Step 4: Simplify right side
    30,138.23x = 458,675,265.45
  5. Step 5: Solve for x
    x = 458,675,265.45/30,138.23
  6. Step 6: Final answer
    x = 15,219.05

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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.