Home / 30,253.90-45,368.42-11,540.74

Finding the Fourth Proportional to 30,253.90, 45,368.42 and 11,540.74

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Solution

The fourth proportional to 30,253.90, 45,368.42 and 11,540.74 is: 17,306.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,253.90 : 45,368.42 = 11,540.74 : x
  2. Step 2: Convert to fraction form
    30,253.90/45,368.42 = 11,540.74/x
  3. Step 3: Cross multiply
    30,253.90x = 45,368.42 × 11,540.74
  4. Step 4: Simplify right side
    30,253.90x = 523,585,139.43
  5. Step 5: Solve for x
    x = 523,585,139.43/30,253.90
  6. Step 6: Final answer
    x = 17,306.37

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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.