Home / 19,680.35-29,511.81-5,637.18

Finding the Fourth Proportional to 19,680.35, 29,511.81 and 5,637.18

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Solution

The fourth proportional to 19,680.35, 29,511.81 and 5,637.18 is: 8,453.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,680.35 : 29,511.81 = 5,637.18 : x
  2. Step 2: Convert to fraction form
    19,680.35/29,511.81 = 5,637.18/x
  3. Step 3: Cross multiply
    19,680.35x = 29,511.81 × 5,637.18
  4. Step 4: Simplify right side
    19,680.35x = 166,363,385.10
  5. Step 5: Solve for x
    x = 166,363,385.10/19,680.35
  6. Step 6: Final answer
    x = 8,453.28

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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.