Home / 42,189.84-63,302.22-18,485.13

Finding the Fourth Proportional to 42,189.84, 63,302.22 and 18,485.13

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Solution

The fourth proportional to 42,189.84, 63,302.22 and 18,485.13 is: 27,735.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,189.84 : 63,302.22 = 18,485.13 : x
  2. Step 2: Convert to fraction form
    42,189.84/63,302.22 = 18,485.13/x
  3. Step 3: Cross multiply
    42,189.84x = 63,302.22 × 18,485.13
  4. Step 4: Simplify right side
    42,189.84x = 1,170,149,765.99
  5. Step 5: Solve for x
    x = 1,170,149,765.99/42,189.84
  6. Step 6: Final answer
    x = 27,735.34

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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.