Home / 25,420.69-38,144.33-18,458.22

Finding the Fourth Proportional to 25,420.69, 38,144.33 and 18,458.22

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Solution

The fourth proportional to 25,420.69, 38,144.33 and 18,458.22 is: 27,696.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,420.69 : 38,144.33 = 18,458.22 : x
  2. Step 2: Convert to fraction form
    25,420.69/38,144.33 = 18,458.22/x
  3. Step 3: Cross multiply
    25,420.69x = 38,144.33 × 18,458.22
  4. Step 4: Simplify right side
    25,420.69x = 704,076,244.17
  5. Step 5: Solve for x
    x = 704,076,244.17/25,420.69
  6. Step 6: Final answer
    x = 27,696.98

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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.