Home / 20,725.40-28,607.24-14,774.33

Finding the Fourth Proportional to 20,725.40, 28,607.24 and 14,774.33

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Solution

The fourth proportional to 20,725.40, 28,607.24 and 14,774.33 is: 20,392.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,725.40 : 28,607.24 = 14,774.33 : x
  2. Step 2: Convert to fraction form
    20,725.40/28,607.24 = 14,774.33/x
  3. Step 3: Cross multiply
    20,725.40x = 28,607.24 × 14,774.33
  4. Step 4: Simplify right side
    20,725.40x = 422,652,804.15
  5. Step 5: Solve for x
    x = 422,652,804.15/20,725.40
  6. Step 6: Final answer
    x = 20,392.99

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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.