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Finding the Fourth Proportional to 23,879.77, 35,807.28 and 12,641.20

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Solution

The fourth proportional to 23,879.77, 35,807.28 and 12,641.20 is: 18,955.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,879.77 : 35,807.28 = 12,641.20 : x
  2. Step 2: Convert to fraction form
    23,879.77/35,807.28 = 12,641.20/x
  3. Step 3: Cross multiply
    23,879.77x = 35,807.28 × 12,641.20
  4. Step 4: Simplify right side
    23,879.77x = 452,646,924.73
  5. Step 5: Solve for x
    x = 452,646,924.73/23,879.77
  6. Step 6: Final answer
    x = 18,955.25

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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.