Home / 28,157.64-38,866.19-16,228.91

Finding the Fourth Proportional to 28,157.64, 38,866.19 and 16,228.91

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Solution

The fourth proportional to 28,157.64, 38,866.19 and 16,228.91 is: 22,400.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,157.64 : 38,866.19 = 16,228.91 : x
  2. Step 2: Convert to fraction form
    28,157.64/38,866.19 = 16,228.91/x
  3. Step 3: Cross multiply
    28,157.64x = 38,866.19 × 16,228.91
  4. Step 4: Simplify right side
    28,157.64x = 630,755,915.57
  5. Step 5: Solve for x
    x = 630,755,915.57/28,157.64
  6. Step 6: Final answer
    x = 22,400.88

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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.