Home / 29,388.00-40,564.64-18,777.60

Finding the Fourth Proportional to 29,388.00, 40,564.64 and 18,777.60

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Solution

The fourth proportional to 29,388.00, 40,564.64 and 18,777.60 is: 25,918.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,388.00 : 40,564.64 = 18,777.60 : x
  2. Step 2: Convert to fraction form
    29,388.00/40,564.64 = 18,777.60/x
  3. Step 3: Cross multiply
    29,388.00x = 40,564.64 × 18,777.60
  4. Step 4: Simplify right side
    29,388.00x = 761,706,783.13
  5. Step 5: Solve for x
    x = 761,706,783.13/29,388.00
  6. Step 6: Final answer
    x = 25,918.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.