Home / 19,004.32-28,516.63-12,339.24

Finding the Fourth Proportional to 19,004.32, 28,516.63 and 12,339.24

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Solution

The fourth proportional to 19,004.32, 28,516.63 and 12,339.24 is: 18,515.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,004.32 : 28,516.63 = 12,339.24 : x
  2. Step 2: Convert to fraction form
    19,004.32/28,516.63 = 12,339.24/x
  3. Step 3: Cross multiply
    19,004.32x = 28,516.63 × 12,339.24
  4. Step 4: Simplify right side
    19,004.32x = 351,873,422.57
  5. Step 5: Solve for x
    x = 351,873,422.57/19,004.32
  6. Step 6: Final answer
    x = 18,515.45

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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.