Home / 28,953.78-39,962.73-16,382.58

Finding the Fourth Proportional to 28,953.78, 39,962.73 and 16,382.58

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Solution

The fourth proportional to 28,953.78, 39,962.73 and 16,382.58 is: 22,611.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,953.78 : 39,962.73 = 16,382.58 : x
  2. Step 2: Convert to fraction form
    28,953.78/39,962.73 = 16,382.58/x
  3. Step 3: Cross multiply
    28,953.78x = 39,962.73 × 16,382.58
  4. Step 4: Simplify right side
    28,953.78x = 654,692,621.24
  5. Step 5: Solve for x
    x = 654,692,621.24/28,953.78
  6. Step 6: Final answer
    x = 22,611.65

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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.