Home / 30,731.28-46,098-12,015.69

Finding the Fourth Proportional to 30,731.28, 46,098 and 12,015.69

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Solution

The fourth proportional to 30,731.28, 46,098 and 12,015.69 is: 18,023.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,731.28 : 46,098 = 12,015.69 : x
  2. Step 2: Convert to fraction form
    30,731.28/46,098 = 12,015.69/x
  3. Step 3: Cross multiply
    30,731.28x = 46,098 × 12,015.69
  4. Step 4: Simplify right side
    30,731.28x = 553,899,277.62
  5. Step 5: Solve for x
    x = 553,899,277.62/30,731.28
  6. Step 6: Final answer
    x = 18,023.96

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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.