Home / 47,724.60-71,565.30-21,415.80

Finding the Fourth Proportional to 47,724.60, 71,565.30 and 21,415.80

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Solution

The fourth proportional to 47,724.60, 71,565.30 and 21,415.80 is: 32,114.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,724.60 : 71,565.30 = 21,415.80 : x
  2. Step 2: Convert to fraction form
    47,724.60/71,565.30 = 21,415.80/x
  3. Step 3: Cross multiply
    47,724.60x = 71,565.30 × 21,415.80
  4. Step 4: Simplify right side
    47,724.60x = 1,532,628,151.74
  5. Step 5: Solve for x
    x = 1,532,628,151.74/47,724.60
  6. Step 6: Final answer
    x = 32,114.01

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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.