Home / 30,153.81-45,232.48-10,161.62

Finding the Fourth Proportional to 30,153.81, 45,232.48 and 10,161.62

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Solution

The fourth proportional to 30,153.81, 45,232.48 and 10,161.62 is: 15,243.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,153.81 : 45,232.48 = 10,161.62 : x
  2. Step 2: Convert to fraction form
    30,153.81/45,232.48 = 10,161.62/x
  3. Step 3: Cross multiply
    30,153.81x = 45,232.48 × 10,161.62
  4. Step 4: Simplify right side
    30,153.81x = 459,635,426.85
  5. Step 5: Solve for x
    x = 459,635,426.85/30,153.81
  6. Step 6: Final answer
    x = 15,243.03

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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.