Home / 20,783.32-28,669.98-14,059.96

Finding the Fourth Proportional to 20,783.32, 28,669.98 and 14,059.96

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Solution

The fourth proportional to 20,783.32, 28,669.98 and 14,059.96 is: 19,395.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,783.32 : 28,669.98 = 14,059.96 : x
  2. Step 2: Convert to fraction form
    20,783.32/28,669.98 = 14,059.96/x
  3. Step 3: Cross multiply
    20,783.32x = 28,669.98 × 14,059.96
  4. Step 4: Simplify right side
    20,783.32x = 403,098,772.00
  5. Step 5: Solve for x
    x = 403,098,772.00/20,783.32
  6. Step 6: Final answer
    x = 19,395.30

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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.