Home / 28,197.18-38,890.80-16,865.82

Finding the Fourth Proportional to 28,197.18, 38,890.80 and 16,865.82

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Solution

The fourth proportional to 28,197.18, 38,890.80 and 16,865.82 is: 23,262.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,197.18 : 38,890.80 = 16,865.82 : x
  2. Step 2: Convert to fraction form
    28,197.18/38,890.80 = 16,865.82/x
  3. Step 3: Cross multiply
    28,197.18x = 38,890.80 × 16,865.82
  4. Step 4: Simplify right side
    28,197.18x = 655,925,232.46
  5. Step 5: Solve for x
    x = 655,925,232.46/28,197.18
  6. Step 6: Final answer
    x = 23,262.09

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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.