Home / 16,815.41-23,192.02-10,438.40

Finding the Fourth Proportional to 16,815.41, 23,192.02 and 10,438.40

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Solution

The fourth proportional to 16,815.41, 23,192.02 and 10,438.40 is: 14,396.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,815.41 : 23,192.02 = 10,438.40 : x
  2. Step 2: Convert to fraction form
    16,815.41/23,192.02 = 10,438.40/x
  3. Step 3: Cross multiply
    16,815.41x = 23,192.02 × 10,438.40
  4. Step 4: Simplify right side
    16,815.41x = 242,087,652.60
  5. Step 5: Solve for x
    x = 242,087,652.60/16,815.41
  6. Step 6: Final answer
    x = 14,396.78

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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.