Home / 28,090.30-38,759.96-16,603.60

Finding the Fourth Proportional to 28,090.30, 38,759.96 and 16,603.60

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Solution

The fourth proportional to 28,090.30, 38,759.96 and 16,603.60 is: 22,910.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,090.30 : 38,759.96 = 16,603.60 : x
  2. Step 2: Convert to fraction form
    28,090.30/38,759.96 = 16,603.60/x
  3. Step 3: Cross multiply
    28,090.30x = 38,759.96 × 16,603.60
  4. Step 4: Simplify right side
    28,090.30x = 643,554,871.86
  5. Step 5: Solve for x
    x = 643,554,871.86/28,090.30
  6. Step 6: Final answer
    x = 22,910.22

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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.