Home / 28,092.30-38,762.72-16,605.60

Finding the Fourth Proportional to 28,092.30, 38,762.72 and 16,605.60

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Solution

The fourth proportional to 28,092.30, 38,762.72 and 16,605.60 is: 22,912.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,092.30 : 38,762.72 = 16,605.60 : x
  2. Step 2: Convert to fraction form
    28,092.30/38,762.72 = 16,605.60/x
  3. Step 3: Cross multiply
    28,092.30x = 38,762.72 × 16,605.60
  4. Step 4: Simplify right side
    28,092.30x = 643,678,223.23
  5. Step 5: Solve for x
    x = 643,678,223.23/28,092.30
  6. Step 6: Final answer
    x = 22,912.98

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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.