Home / 28,115.00-38,798.74-16,178.10

Finding the Fourth Proportional to 28,115.00, 38,798.74 and 16,178.10

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Solution

The fourth proportional to 28,115.00, 38,798.74 and 16,178.10 is: 22,325.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,115.00 : 38,798.74 = 16,178.10 : x
  2. Step 2: Convert to fraction form
    28,115.00/38,798.74 = 16,178.10/x
  3. Step 3: Cross multiply
    28,115.00x = 38,798.74 × 16,178.10
  4. Step 4: Simplify right side
    28,115.00x = 627,689,936.04
  5. Step 5: Solve for x
    x = 627,689,936.04/28,115.00
  6. Step 6: Final answer
    x = 22,325.80

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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.