Home / 38,961.36-58,368.60-19,216.80

Finding the Fourth Proportional to 38,961.36, 58,368.60 and 19,216.80

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Solution

The fourth proportional to 38,961.36, 58,368.60 and 19,216.80 is: 28,788.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,961.36 : 58,368.60 = 19,216.80 : x
  2. Step 2: Convert to fraction form
    38,961.36/58,368.60 = 19,216.80/x
  3. Step 3: Cross multiply
    38,961.36x = 58,368.60 × 19,216.80
  4. Step 4: Simplify right side
    38,961.36x = 1,121,657,712.48
  5. Step 5: Solve for x
    x = 1,121,657,712.48/38,961.36
  6. Step 6: Final answer
    x = 28,788.98

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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.