Home / 30,215.16-45,321.37-10,495.25

Finding the Fourth Proportional to 30,215.16, 45,321.37 and 10,495.25

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Solution

The fourth proportional to 30,215.16, 45,321.37 and 10,495.25 is: 15,742.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,215.16 : 45,321.37 = 10,495.25 : x
  2. Step 2: Convert to fraction form
    30,215.16/45,321.37 = 10,495.25/x
  3. Step 3: Cross multiply
    30,215.16x = 45,321.37 × 10,495.25
  4. Step 4: Simplify right side
    30,215.16x = 475,659,339.57
  5. Step 5: Solve for x
    x = 475,659,339.57/30,215.16
  6. Step 6: Final answer
    x = 15,742.41

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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.