Home / 19,052.11-28,570.35-5,720.45

Finding the Fourth Proportional to 19,052.11, 28,570.35 and 5,720.45

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Solution

The fourth proportional to 19,052.11, 28,570.35 and 5,720.45 is: 8,578.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,052.11 : 28,570.35 = 5,720.45 : x
  2. Step 2: Convert to fraction form
    19,052.11/28,570.35 = 5,720.45/x
  3. Step 3: Cross multiply
    19,052.11x = 28,570.35 × 5,720.45
  4. Step 4: Simplify right side
    19,052.11x = 163,435,169.35
  5. Step 5: Solve for x
    x = 163,435,169.35/19,052.11
  6. Step 6: Final answer
    x = 8,578.32

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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.