Home / 31,105.12-46,621.24-15,317.40

Finding the Fourth Proportional to 31,105.12, 46,621.24 and 15,317.40

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Solution

The fourth proportional to 31,105.12, 46,621.24 and 15,317.40 is: 22,958.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,105.12 : 46,621.24 = 15,317.40 : x
  2. Step 2: Convert to fraction form
    31,105.12/46,621.24 = 15,317.40/x
  3. Step 3: Cross multiply
    31,105.12x = 46,621.24 × 15,317.40
  4. Step 4: Simplify right side
    31,105.12x = 714,116,181.58
  5. Step 5: Solve for x
    x = 714,116,181.58/31,105.12
  6. Step 6: Final answer
    x = 22,958.16

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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.