Home / 20,647.98-28,452.60-14,964.48

Finding the Fourth Proportional to 20,647.98, 28,452.60 and 14,964.48

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Solution

The fourth proportional to 20,647.98, 28,452.60 and 14,964.48 is: 20,620.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,647.98 : 28,452.60 = 14,964.48 : x
  2. Step 2: Convert to fraction form
    20,647.98/28,452.60 = 14,964.48/x
  3. Step 3: Cross multiply
    20,647.98x = 28,452.60 × 14,964.48
  4. Step 4: Simplify right side
    20,647.98x = 425,778,363.65
  5. Step 5: Solve for x
    x = 425,778,363.65/20,647.98
  6. Step 6: Final answer
    x = 20,620.82

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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.