Home / 28,156.58-38,853.44-16,823.82

Finding the Fourth Proportional to 28,156.58, 38,853.44 and 16,823.82

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Solution

The fourth proportional to 28,156.58, 38,853.44 and 16,823.82 is: 23,215.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,156.58 : 38,853.44 = 16,823.82 : x
  2. Step 2: Convert to fraction form
    28,156.58/38,853.44 = 16,823.82/x
  3. Step 3: Cross multiply
    28,156.58x = 38,853.44 × 16,823.82
  4. Step 4: Simplify right side
    28,156.58x = 653,663,002.55
  5. Step 5: Solve for x
    x = 653,663,002.55/28,156.58
  6. Step 6: Final answer
    x = 23,215.29

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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.