Home / 30,126.67-45,173.05-12,352.43

Finding the Fourth Proportional to 30,126.67, 45,173.05 and 12,352.43

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Solution

The fourth proportional to 30,126.67, 45,173.05 and 12,352.43 is: 18,521.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,126.67 : 45,173.05 = 12,352.43 : x
  2. Step 2: Convert to fraction form
    30,126.67/45,173.05 = 12,352.43/x
  3. Step 3: Cross multiply
    30,126.67x = 45,173.05 × 12,352.43
  4. Step 4: Simplify right side
    30,126.67x = 557,996,938.01
  5. Step 5: Solve for x
    x = 557,996,938.01/30,126.67
  6. Step 6: Final answer
    x = 18,521.69

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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.