Home / 20,460.75-28,237.05-12,504.93

Finding the Fourth Proportional to 20,460.75, 28,237.05 and 12,504.93

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Solution

The fourth proportional to 20,460.75, 28,237.05 and 12,504.93 is: 17,257.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,460.75 : 28,237.05 = 12,504.93 : x
  2. Step 2: Convert to fraction form
    20,460.75/28,237.05 = 12,504.93/x
  3. Step 3: Cross multiply
    20,460.75x = 28,237.05 × 12,504.93
  4. Step 4: Simplify right side
    20,460.75x = 353,102,333.66
  5. Step 5: Solve for x
    x = 353,102,333.66/20,460.75
  6. Step 6: Final answer
    x = 17,257.55

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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.