Home / 21,152.21-29,193.10-12,197.93

Finding the Fourth Proportional to 21,152.21, 29,193.10 and 12,197.93

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Solution

The fourth proportional to 21,152.21, 29,193.10 and 12,197.93 is: 16,834.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,152.21 : 29,193.10 = 12,197.93 : x
  2. Step 2: Convert to fraction form
    21,152.21/29,193.10 = 12,197.93/x
  3. Step 3: Cross multiply
    21,152.21x = 29,193.10 × 12,197.93
  4. Step 4: Simplify right side
    21,152.21x = 356,095,390.28
  5. Step 5: Solve for x
    x = 356,095,390.28/21,152.21
  6. Step 6: Final answer
    x = 16,834.90

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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.