Home / 20,633.56-28,497.76-13,907.58

Finding the Fourth Proportional to 20,633.56, 28,497.76 and 13,907.58

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Solution

The fourth proportional to 20,633.56, 28,497.76 and 13,907.58 is: 19,208.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,633.56 : 28,497.76 = 13,907.58 : x
  2. Step 2: Convert to fraction form
    20,633.56/28,497.76 = 13,907.58/x
  3. Step 3: Cross multiply
    20,633.56x = 28,497.76 × 13,907.58
  4. Step 4: Simplify right side
    20,633.56x = 396,334,877.02
  5. Step 5: Solve for x
    x = 396,334,877.02/20,633.56
  6. Step 6: Final answer
    x = 19,208.26

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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.