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Finding the Fourth Proportional to 35,662.80, 53,429.40 and 21,795.60

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Solution

The fourth proportional to 35,662.80, 53,429.40 and 21,795.60 is: 32,653.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,662.80 : 53,429.40 = 21,795.60 : x
  2. Step 2: Convert to fraction form
    35,662.80/53,429.40 = 21,795.60/x
  3. Step 3: Cross multiply
    35,662.80x = 53,429.40 × 21,795.60
  4. Step 4: Simplify right side
    35,662.80x = 1,164,525,830.64
  5. Step 5: Solve for x
    x = 1,164,525,830.64/35,662.80
  6. Step 6: Final answer
    x = 32,653.80

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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.