Home / 28,840.42-39,802.85-16,913.78

Finding the Fourth Proportional to 28,840.42, 39,802.85 and 16,913.78

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Solution

The fourth proportional to 28,840.42, 39,802.85 and 16,913.78 is: 23,342.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,840.42 : 39,802.85 = 16,913.78 : x
  2. Step 2: Convert to fraction form
    28,840.42/39,802.85 = 16,913.78/x
  3. Step 3: Cross multiply
    28,840.42x = 39,802.85 × 16,913.78
  4. Step 4: Simplify right side
    28,840.42x = 673,216,648.27
  5. Step 5: Solve for x
    x = 673,216,648.27/28,840.42
  6. Step 6: Final answer
    x = 23,342.82

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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.