Home / 20,500.02-28,297.10-12,004.87

Finding the Fourth Proportional to 20,500.02, 28,297.10 and 12,004.87

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Solution

The fourth proportional to 20,500.02, 28,297.10 and 12,004.87 is: 16,570.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,500.02 : 28,297.10 = 12,004.87 : x
  2. Step 2: Convert to fraction form
    20,500.02/28,297.10 = 12,004.87/x
  3. Step 3: Cross multiply
    20,500.02x = 28,297.10 × 12,004.87
  4. Step 4: Simplify right side
    20,500.02x = 339,703,006.88
  5. Step 5: Solve for x
    x = 339,703,006.88/20,500.02
  6. Step 6: Final answer
    x = 16,570.86

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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.