Home / 28,014.24-38,666.52-16,690.44

Finding the Fourth Proportional to 28,014.24, 38,666.52 and 16,690.44

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Solution

The fourth proportional to 28,014.24, 38,666.52 and 16,690.44 is: 23,036.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,014.24 : 38,666.52 = 16,690.44 : x
  2. Step 2: Convert to fraction form
    28,014.24/38,666.52 = 16,690.44/x
  3. Step 3: Cross multiply
    28,014.24x = 38,666.52 × 16,690.44
  4. Step 4: Simplify right side
    28,014.24x = 645,361,232.07
  5. Step 5: Solve for x
    x = 645,361,232.07/28,014.24
  6. Step 6: Final answer
    x = 23,036.90

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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.