Home / 28,158.48-38,858.58-16,223.94

Finding the Fourth Proportional to 28,158.48, 38,858.58 and 16,223.94

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Solution

The fourth proportional to 28,158.48, 38,858.58 and 16,223.94 is: 22,388.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,158.48 : 38,858.58 = 16,223.94 : x
  2. Step 2: Convert to fraction form
    28,158.48/38,858.58 = 16,223.94/x
  3. Step 3: Cross multiply
    28,158.48x = 38,858.58 × 16,223.94
  4. Step 4: Simplify right side
    28,158.48x = 630,439,270.41
  5. Step 5: Solve for x
    x = 630,439,270.41/28,158.48
  6. Step 6: Final answer
    x = 22,388.97

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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.