Home / 28,905.49-39,890.44-16,158.25

Finding the Fourth Proportional to 28,905.49, 39,890.44 and 16,158.25

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Solution

The fourth proportional to 28,905.49, 39,890.44 and 16,158.25 is: 22,298.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,905.49 : 39,890.44 = 16,158.25 : x
  2. Step 2: Convert to fraction form
    28,905.49/39,890.44 = 16,158.25/x
  3. Step 3: Cross multiply
    28,905.49x = 39,890.44 × 16,158.25
  4. Step 4: Simplify right side
    28,905.49x = 644,559,772.19
  5. Step 5: Solve for x
    x = 644,559,772.19/28,905.49
  6. Step 6: Final answer
    x = 22,298.87

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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.