Home / 30,351.40-45,531.26-10,355.53

Finding the Fourth Proportional to 30,351.40, 45,531.26 and 10,355.53

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Solution

The fourth proportional to 30,351.40, 45,531.26 and 10,355.53 is: 15,534.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,351.40 : 45,531.26 = 10,355.53 : x
  2. Step 2: Convert to fraction form
    30,351.40/45,531.26 = 10,355.53/x
  3. Step 3: Cross multiply
    30,351.40x = 45,531.26 × 10,355.53
  4. Step 4: Simplify right side
    30,351.40x = 471,500,345.72
  5. Step 5: Solve for x
    x = 471,500,345.72/30,351.40
  6. Step 6: Final answer
    x = 15,534.71

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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.