Home / 28,156.32-38,838.78-18,596.28

Finding the Fourth Proportional to 28,156.32, 38,838.78 and 18,596.28

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Solution

The fourth proportional to 28,156.32, 38,838.78 and 18,596.28 is: 25,651.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,156.32 : 38,838.78 = 18,596.28 : x
  2. Step 2: Convert to fraction form
    28,156.32/38,838.78 = 18,596.28/x
  3. Step 3: Cross multiply
    28,156.32x = 38,838.78 × 18,596.28
  4. Step 4: Simplify right side
    28,156.32x = 722,256,827.74
  5. Step 5: Solve for x
    x = 722,256,827.74/28,156.32
  6. Step 6: Final answer
    x = 25,651.68

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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.