Home / 28,754.40-39,677.84-16,178.88

Finding the Fourth Proportional to 28,754.40, 39,677.84 and 16,178.88

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Solution

The fourth proportional to 28,754.40, 39,677.84 and 16,178.88 is: 22,325.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,754.40 : 39,677.84 = 16,178.88 : x
  2. Step 2: Convert to fraction form
    28,754.40/39,677.84 = 16,178.88/x
  3. Step 3: Cross multiply
    28,754.40x = 39,677.84 × 16,178.88
  4. Step 4: Simplify right side
    28,754.40x = 641,943,012.02
  5. Step 5: Solve for x
    x = 641,943,012.02/28,754.40
  6. Step 6: Final answer
    x = 22,325.04

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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.