Home / 19,579.40-29,368.44-4,788.38

Finding the Fourth Proportional to 19,579.40, 29,368.44 and 4,788.38

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Solution

The fourth proportional to 19,579.40, 29,368.44 and 4,788.38 is: 7,182.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,579.40 : 29,368.44 = 4,788.38 : x
  2. Step 2: Convert to fraction form
    19,579.40/29,368.44 = 4,788.38/x
  3. Step 3: Cross multiply
    19,579.40x = 29,368.44 × 4,788.38
  4. Step 4: Simplify right side
    19,579.40x = 140,627,250.73
  5. Step 5: Solve for x
    x = 140,627,250.73/19,579.40
  6. Step 6: Final answer
    x = 7,182.41

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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.