Home / 23,905.60-35,815.20-21,140.80

Finding the Fourth Proportional to 23,905.60, 35,815.20 and 21,140.80

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Solution

The fourth proportional to 23,905.60, 35,815.20 and 21,140.80 is: 31,673.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,905.60 : 35,815.20 = 21,140.80 : x
  2. Step 2: Convert to fraction form
    23,905.60/35,815.20 = 21,140.80/x
  3. Step 3: Cross multiply
    23,905.60x = 35,815.20 × 21,140.80
  4. Step 4: Simplify right side
    23,905.60x = 757,161,980.16
  5. Step 5: Solve for x
    x = 757,161,980.16/23,905.60
  6. Step 6: Final answer
    x = 31,673.00

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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.