Home / 28,653.12-39,541.20-16,077.84

Finding the Fourth Proportional to 28,653.12, 39,541.20 and 16,077.84

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Solution

The fourth proportional to 28,653.12, 39,541.20 and 16,077.84 is: 22,187.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,653.12 : 39,541.20 = 16,077.84 : x
  2. Step 2: Convert to fraction form
    28,653.12/39,541.20 = 16,077.84/x
  3. Step 3: Cross multiply
    28,653.12x = 39,541.20 × 16,077.84
  4. Step 4: Simplify right side
    28,653.12x = 635,737,087.01
  5. Step 5: Solve for x
    x = 635,737,087.01/28,653.12
  6. Step 6: Final answer
    x = 22,187.36

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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.