Home / 20,598.98-28,416.57-12,209.54

Finding the Fourth Proportional to 20,598.98, 28,416.57 and 12,209.54

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Solution

The fourth proportional to 20,598.98, 28,416.57 and 12,209.54 is: 16,843.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,598.98 : 28,416.57 = 12,209.54 : x
  2. Step 2: Convert to fraction form
    20,598.98/28,416.57 = 12,209.54/x
  3. Step 3: Cross multiply
    20,598.98x = 28,416.57 × 12,209.54
  4. Step 4: Simplify right side
    20,598.98x = 346,953,248.08
  5. Step 5: Solve for x
    x = 346,953,248.08/20,598.98
  6. Step 6: Final answer
    x = 16,843.22

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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.