Home / 28,192.56-38,905.20-16,256.40

Finding the Fourth Proportional to 28,192.56, 38,905.20 and 16,256.40

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Solution

The fourth proportional to 28,192.56, 38,905.20 and 16,256.40 is: 22,433.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,192.56 : 38,905.20 = 16,256.40 : x
  2. Step 2: Convert to fraction form
    28,192.56/38,905.20 = 16,256.40/x
  3. Step 3: Cross multiply
    28,192.56x = 38,905.20 × 16,256.40
  4. Step 4: Simplify right side
    28,192.56x = 632,458,493.28
  5. Step 5: Solve for x
    x = 632,458,493.28/28,192.56
  6. Step 6: Final answer
    x = 22,433.52

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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.