Home / 25,190.86-34,765.12-16,678.34

Finding the Fourth Proportional to 25,190.86, 34,765.12 and 16,678.34

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Solution

The fourth proportional to 25,190.86, 34,765.12 and 16,678.34 is: 23,017.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,190.86 : 34,765.12 = 16,678.34 : x
  2. Step 2: Convert to fraction form
    25,190.86/34,765.12 = 16,678.34/x
  3. Step 3: Cross multiply
    25,190.86x = 34,765.12 × 16,678.34
  4. Step 4: Simplify right side
    25,190.86x = 579,824,491.50
  5. Step 5: Solve for x
    x = 579,824,491.50/25,190.86
  6. Step 6: Final answer
    x = 23,017.26

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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.