Home / 35,700.21-53,512.65-11,985.30

Finding the Fourth Proportional to 35,700.21, 53,512.65 and 11,985.30

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Solution

The fourth proportional to 35,700.21, 53,512.65 and 11,985.30 is: 17,965.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,700.21 : 53,512.65 = 11,985.30 : x
  2. Step 2: Convert to fraction form
    35,700.21/53,512.65 = 11,985.30/x
  3. Step 3: Cross multiply
    35,700.21x = 53,512.65 × 11,985.30
  4. Step 4: Simplify right side
    35,700.21x = 641,365,164.05
  5. Step 5: Solve for x
    x = 641,365,164.05/35,700.21
  6. Step 6: Final answer
    x = 17,965.31

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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.