Home / 35,679.90-53,525.98-11,989.72

Finding the Fourth Proportional to 35,679.90, 53,525.98 and 11,989.72

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Solution

The fourth proportional to 35,679.90, 53,525.98 and 11,989.72 is: 17,986.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,679.90 : 53,525.98 = 11,989.72 : x
  2. Step 2: Convert to fraction form
    35,679.90/53,525.98 = 11,989.72/x
  3. Step 3: Cross multiply
    35,679.90x = 53,525.98 × 11,989.72
  4. Step 4: Simplify right side
    35,679.90x = 641,761,512.93
  5. Step 5: Solve for x
    x = 641,761,512.93/35,679.90
  6. Step 6: Final answer
    x = 17,986.64

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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.