Home / 30,120.14-45,207.74-15,339.26

Finding the Fourth Proportional to 30,120.14, 45,207.74 and 15,339.26

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Solution

The fourth proportional to 30,120.14, 45,207.74 and 15,339.26 is: 23,022.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,120.14 : 45,207.74 = 15,339.26 : x
  2. Step 2: Convert to fraction form
    30,120.14/45,207.74 = 15,339.26/x
  3. Step 3: Cross multiply
    30,120.14x = 45,207.74 × 15,339.26
  4. Step 4: Simplify right side
    30,120.14x = 693,453,277.87
  5. Step 5: Solve for x
    x = 693,453,277.87/30,120.14
  6. Step 6: Final answer
    x = 23,022.91

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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.