Home / 20,705.02-28,573.26-11,273.58

Finding the Fourth Proportional to 20,705.02, 28,573.26 and 11,273.58

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Solution

The fourth proportional to 20,705.02, 28,573.26 and 11,273.58 is: 15,557.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,705.02 : 28,573.26 = 11,273.58 : x
  2. Step 2: Convert to fraction form
    20,705.02/28,573.26 = 11,273.58/x
  3. Step 3: Cross multiply
    20,705.02x = 28,573.26 × 11,273.58
  4. Step 4: Simplify right side
    20,705.02x = 322,122,890.19
  5. Step 5: Solve for x
    x = 322,122,890.19/20,705.02
  6. Step 6: Final answer
    x = 15,557.72

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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.