Home / 30,155.31-45,236.48-11,449.35

Finding the Fourth Proportional to 30,155.31, 45,236.48 and 11,449.35

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Solution

The fourth proportional to 30,155.31, 45,236.48 and 11,449.35 is: 17,175.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,155.31 : 45,236.48 = 11,449.35 : x
  2. Step 2: Convert to fraction form
    30,155.31/45,236.48 = 11,449.35/x
  3. Step 3: Cross multiply
    30,155.31x = 45,236.48 × 11,449.35
  4. Step 4: Simplify right side
    30,155.31x = 517,928,235.04
  5. Step 5: Solve for x
    x = 517,928,235.04/30,155.31
  6. Step 6: Final answer
    x = 17,175.36

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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.