Home / 30,107.34-45,168.93-10,387.31

Finding the Fourth Proportional to 30,107.34, 45,168.93 and 10,387.31

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Solution

The fourth proportional to 30,107.34, 45,168.93 and 10,387.31 is: 15,583.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,107.34 : 45,168.93 = 10,387.31 : x
  2. Step 2: Convert to fraction form
    30,107.34/45,168.93 = 10,387.31/x
  3. Step 3: Cross multiply
    30,107.34x = 45,168.93 × 10,387.31
  4. Step 4: Simplify right side
    30,107.34x = 469,183,452.43
  5. Step 5: Solve for x
    x = 469,183,452.43/30,107.34
  6. Step 6: Final answer
    x = 15,583.69

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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.