Home / 20,350.31-28,097.14-12,705.23

Finding the Fourth Proportional to 20,350.31, 28,097.14 and 12,705.23

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Solution

The fourth proportional to 20,350.31, 28,097.14 and 12,705.23 is: 17,541.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,350.31 : 28,097.14 = 12,705.23 : x
  2. Step 2: Convert to fraction form
    20,350.31/28,097.14 = 12,705.23/x
  3. Step 3: Cross multiply
    20,350.31x = 28,097.14 × 12,705.23
  4. Step 4: Simplify right side
    20,350.31x = 356,980,664.52
  5. Step 5: Solve for x
    x = 356,980,664.52/20,350.31
  6. Step 6: Final answer
    x = 17,541.78

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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.