Home / 19,317.21-28,947.87-9,445.35

Finding the Fourth Proportional to 19,317.21, 28,947.87 and 9,445.35

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Solution

The fourth proportional to 19,317.21, 28,947.87 and 9,445.35 is: 14,154.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,317.21 : 28,947.87 = 9,445.35 : x
  2. Step 2: Convert to fraction form
    19,317.21/28,947.87 = 9,445.35/x
  3. Step 3: Cross multiply
    19,317.21x = 28,947.87 × 9,445.35
  4. Step 4: Simplify right side
    19,317.21x = 273,422,763.90
  5. Step 5: Solve for x
    x = 273,422,763.90/19,317.21
  6. Step 6: Final answer
    x = 14,154.36

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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.