Home / 28,600.07-42,882.78-12,802.15

Finding the Fourth Proportional to 28,600.07, 42,882.78 and 12,802.15

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Solution

The fourth proportional to 28,600.07, 42,882.78 and 12,802.15 is: 19,195.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,600.07 : 42,882.78 = 12,802.15 : x
  2. Step 2: Convert to fraction form
    28,600.07/42,882.78 = 12,802.15/x
  3. Step 3: Cross multiply
    28,600.07x = 42,882.78 × 12,802.15
  4. Step 4: Simplify right side
    28,600.07x = 548,991,883.59
  5. Step 5: Solve for x
    x = 548,991,883.59/28,600.07
  6. Step 6: Final answer
    x = 19,195.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.