Home / 28,384.85-39,171.06-16,455.11

Finding the Fourth Proportional to 28,384.85, 39,171.06 and 16,455.11

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Solution

The fourth proportional to 28,384.85, 39,171.06 and 16,455.11 is: 22,708.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,384.85 : 39,171.06 = 16,455.11 : x
  2. Step 2: Convert to fraction form
    28,384.85/39,171.06 = 16,455.11/x
  3. Step 3: Cross multiply
    28,384.85x = 39,171.06 × 16,455.11
  4. Step 4: Simplify right side
    28,384.85x = 644,563,905.26
  5. Step 5: Solve for x
    x = 644,563,905.26/28,384.85
  6. Step 6: Final answer
    x = 22,708.03

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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.