Home / 30,966.15-46,451.55-8,781.32

Finding the Fourth Proportional to 30,966.15, 46,451.55 and 8,781.32

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Solution

The fourth proportional to 30,966.15, 46,451.55 and 8,781.32 is: 13,172.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,966.15 : 46,451.55 = 8,781.32 : x
  2. Step 2: Convert to fraction form
    30,966.15/46,451.55 = 8,781.32/x
  3. Step 3: Cross multiply
    30,966.15x = 46,451.55 × 8,781.32
  4. Step 4: Simplify right side
    30,966.15x = 407,905,685.75
  5. Step 5: Solve for x
    x = 407,905,685.75/30,966.15
  6. Step 6: Final answer
    x = 13,172.63

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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.