Home / 30,995.31-46,465.68-12,288.48

Finding the Fourth Proportional to 30,995.31, 46,465.68 and 12,288.48

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Solution

The fourth proportional to 30,995.31, 46,465.68 and 12,288.48 is: 18,421.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,995.31 : 46,465.68 = 12,288.48 : x
  2. Step 2: Convert to fraction form
    30,995.31/46,465.68 = 12,288.48/x
  3. Step 3: Cross multiply
    30,995.31x = 46,465.68 × 12,288.48
  4. Step 4: Simplify right side
    30,995.31x = 570,992,712.57
  5. Step 5: Solve for x
    x = 570,992,712.57/30,995.31
  6. Step 6: Final answer
    x = 18,421.90

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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.