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Finding the Fourth Proportional to 26,014.40, 38,906.40 and 21,867.20

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Solution

The fourth proportional to 26,014.40, 38,906.40 and 21,867.20 is: 32,703.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,014.40 : 38,906.40 = 21,867.20 : x
  2. Step 2: Convert to fraction form
    26,014.40/38,906.40 = 21,867.20/x
  3. Step 3: Cross multiply
    26,014.40x = 38,906.40 × 21,867.20
  4. Step 4: Simplify right side
    26,014.40x = 850,774,030.08
  5. Step 5: Solve for x
    x = 850,774,030.08/26,014.40
  6. Step 6: Final answer
    x = 32,703.97

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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.