Home / 30,377.16-41,929.38-19,205.64

Finding the Fourth Proportional to 30,377.16, 41,929.38 and 19,205.64

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Solution

The fourth proportional to 30,377.16, 41,929.38 and 19,205.64 is: 26,509.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,377.16 : 41,929.38 = 19,205.64 : x
  2. Step 2: Convert to fraction form
    30,377.16/41,929.38 = 19,205.64/x
  3. Step 3: Cross multiply
    30,377.16x = 41,929.38 × 19,205.64
  4. Step 4: Simplify right side
    30,377.16x = 805,280,577.70
  5. Step 5: Solve for x
    x = 805,280,577.70/30,377.16
  6. Step 6: Final answer
    x = 26,509.41

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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.