Home / 30,161.28-45,246.08-10,434.56

Finding the Fourth Proportional to 30,161.28, 45,246.08 and 10,434.56

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Solution

The fourth proportional to 30,161.28, 45,246.08 and 10,434.56 is: 15,653.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,161.28 : 45,246.08 = 10,434.56 : x
  2. Step 2: Convert to fraction form
    30,161.28/45,246.08 = 10,434.56/x
  3. Step 3: Cross multiply
    30,161.28x = 45,246.08 × 10,434.56
  4. Step 4: Simplify right side
    30,161.28x = 472,122,936.52
  5. Step 5: Solve for x
    x = 472,122,936.52/30,161.28
  6. Step 6: Final answer
    x = 15,653.28

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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.