Home / 30,559.03-42,173.90-17,986.21

Finding the Fourth Proportional to 30,559.03, 42,173.90 and 17,986.21

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Solution

The fourth proportional to 30,559.03, 42,173.90 and 17,986.21 is: 24,822.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,559.03 : 42,173.90 = 17,986.21 : x
  2. Step 2: Convert to fraction form
    30,559.03/42,173.90 = 17,986.21/x
  3. Step 3: Cross multiply
    30,559.03x = 42,173.90 × 17,986.21
  4. Step 4: Simplify right side
    30,559.03x = 758,548,531.99
  5. Step 5: Solve for x
    x = 758,548,531.99/30,559.03
  6. Step 6: Final answer
    x = 24,822.40

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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.