Home / 28,034.87-42,004.70-16,918.20

Finding the Fourth Proportional to 28,034.87, 42,004.70 and 16,918.20

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Solution

The fourth proportional to 28,034.87, 42,004.70 and 16,918.20 is: 25,348.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,034.87 : 42,004.70 = 16,918.20 : x
  2. Step 2: Convert to fraction form
    28,034.87/42,004.70 = 16,918.20/x
  3. Step 3: Cross multiply
    28,034.87x = 42,004.70 × 16,918.20
  4. Step 4: Simplify right side
    28,034.87x = 710,643,668.33
  5. Step 5: Solve for x
    x = 710,643,668.33/28,034.87
  6. Step 6: Final answer
    x = 25,348.57

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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.