Home / 30,253.32-45,338.36-15,431.03

Finding the Fourth Proportional to 30,253.32, 45,338.36 and 15,431.03

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Solution

The fourth proportional to 30,253.32, 45,338.36 and 15,431.03 is: 23,125.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,253.32 : 45,338.36 = 15,431.03 : x
  2. Step 2: Convert to fraction form
    30,253.32/45,338.36 = 15,431.03/x
  3. Step 3: Cross multiply
    30,253.32x = 45,338.36 × 15,431.03
  4. Step 4: Simplify right side
    30,253.32x = 699,617,745.23
  5. Step 5: Solve for x
    x = 699,617,745.23/30,253.32
  6. Step 6: Final answer
    x = 23,125.32

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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.