Home / 28,864.78-39,822.86-16,925.81

Finding the Fourth Proportional to 28,864.78, 39,822.86 and 16,925.81

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Solution

The fourth proportional to 28,864.78, 39,822.86 and 16,925.81 is: 23,351.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,864.78 : 39,822.86 = 16,925.81 : x
  2. Step 2: Convert to fraction form
    28,864.78/39,822.86 = 16,925.81/x
  3. Step 3: Cross multiply
    28,864.78x = 39,822.86 × 16,925.81
  4. Step 4: Simplify right side
    28,864.78x = 674,034,005.22
  5. Step 5: Solve for x
    x = 674,034,005.22/28,864.78
  6. Step 6: Final answer
    x = 23,351.44

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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.