Home / 29,109.60-43,664.40-21,333.60

Finding the Fourth Proportional to 29,109.60, 43,664.40 and 21,333.60

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Solution

The fourth proportional to 29,109.60, 43,664.40 and 21,333.60 is: 32,000.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,109.60 : 43,664.40 = 21,333.60 : x
  2. Step 2: Convert to fraction form
    29,109.60/43,664.40 = 21,333.60/x
  3. Step 3: Cross multiply
    29,109.60x = 43,664.40 × 21,333.60
  4. Step 4: Simplify right side
    29,109.60x = 931,518,843.84
  5. Step 5: Solve for x
    x = 931,518,843.84/29,109.60
  6. Step 6: Final answer
    x = 32,000.40

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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.