Home / 20,495.48-28,284.14-12,002.63

Finding the Fourth Proportional to 20,495.48, 28,284.14 and 12,002.63

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Solution

The fourth proportional to 20,495.48, 28,284.14 and 12,002.63 is: 16,563.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,495.48 : 28,284.14 = 12,002.63 : x
  2. Step 2: Convert to fraction form
    20,495.48/28,284.14 = 12,002.63/x
  3. Step 3: Cross multiply
    20,495.48x = 28,284.14 × 12,002.63
  4. Step 4: Simplify right side
    20,495.48x = 339,484,168.01
  5. Step 5: Solve for x
    x = 339,484,168.01/20,495.48
  6. Step 6: Final answer
    x = 16,563.85

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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.