Home / 28,926.74-39,920.87-16,181.11

Finding the Fourth Proportional to 28,926.74, 39,920.87 and 16,181.11

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Solution

The fourth proportional to 28,926.74, 39,920.87 and 16,181.11 is: 22,331.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,926.74 : 39,920.87 = 16,181.11 : x
  2. Step 2: Convert to fraction form
    28,926.74/39,920.87 = 16,181.11/x
  3. Step 3: Cross multiply
    28,926.74x = 39,920.87 × 16,181.11
  4. Step 4: Simplify right side
    28,926.74x = 645,963,988.77
  5. Step 5: Solve for x
    x = 645,963,988.77/28,926.74
  6. Step 6: Final answer
    x = 22,331.03

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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.