Home / 30,653.96-45,998.39-11,931.57

Finding the Fourth Proportional to 30,653.96, 45,998.39 and 11,931.57

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Solution

The fourth proportional to 30,653.96, 45,998.39 and 11,931.57 is: 17,904.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,653.96 : 45,998.39 = 11,931.57 : x
  2. Step 2: Convert to fraction form
    30,653.96/45,998.39 = 11,931.57/x
  3. Step 3: Cross multiply
    30,653.96x = 45,998.39 × 11,931.57
  4. Step 4: Simplify right side
    30,653.96x = 548,833,040.00
  5. Step 5: Solve for x
    x = 548,833,040.00/30,653.96
  6. Step 6: Final answer
    x = 17,904.15

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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.