Home / 20,349.07-28,084.04-12,395.95

Finding the Fourth Proportional to 20,349.07, 28,084.04 and 12,395.95

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Solution

The fourth proportional to 20,349.07, 28,084.04 and 12,395.95 is: 17,107.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,349.07 : 28,084.04 = 12,395.95 : x
  2. Step 2: Convert to fraction form
    20,349.07/28,084.04 = 12,395.95/x
  3. Step 3: Cross multiply
    20,349.07x = 28,084.04 × 12,395.95
  4. Step 4: Simplify right side
    20,349.07x = 348,128,355.64
  5. Step 5: Solve for x
    x = 348,128,355.64/20,349.07
  6. Step 6: Final answer
    x = 17,107.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.