Home / 30,239.64-45,364.17-15,440.55

Finding the Fourth Proportional to 30,239.64, 45,364.17 and 15,440.55

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Solution

The fourth proportional to 30,239.64, 45,364.17 and 15,440.55 is: 23,163.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,239.64 : 45,364.17 = 15,440.55 : x
  2. Step 2: Convert to fraction form
    30,239.64/45,364.17 = 15,440.55/x
  3. Step 3: Cross multiply
    30,239.64x = 45,364.17 × 15,440.55
  4. Step 4: Simplify right side
    30,239.64x = 700,447,735.09
  5. Step 5: Solve for x
    x = 700,447,735.09/30,239.64
  6. Step 6: Final answer
    x = 23,163.23

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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.