Home / 30,190.53-45,284.58-15,399.12

Finding the Fourth Proportional to 30,190.53, 45,284.58 and 15,399.12

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Solution

The fourth proportional to 30,190.53, 45,284.58 and 15,399.12 is: 23,098.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,190.53 : 45,284.58 = 15,399.12 : x
  2. Step 2: Convert to fraction form
    30,190.53/45,284.58 = 15,399.12/x
  3. Step 3: Cross multiply
    30,190.53x = 45,284.58 × 15,399.12
  4. Step 4: Simplify right side
    30,190.53x = 697,342,681.57
  5. Step 5: Solve for x
    x = 697,342,681.57/30,190.53
  6. Step 6: Final answer
    x = 23,098.06

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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.