Home / 28,578.34-39,451.78-19,034.10

Finding the Fourth Proportional to 28,578.34, 39,451.78 and 19,034.10

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Solution

The fourth proportional to 28,578.34, 39,451.78 and 19,034.10 is: 26,276.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,578.34 : 39,451.78 = 19,034.10 : x
  2. Step 2: Convert to fraction form
    28,578.34/39,451.78 = 19,034.10/x
  3. Step 3: Cross multiply
    28,578.34x = 39,451.78 × 19,034.10
  4. Step 4: Simplify right side
    28,578.34x = 750,929,125.70
  5. Step 5: Solve for x
    x = 750,929,125.70/28,578.34
  6. Step 6: Final answer
    x = 26,276.16

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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.