Home / 26,319.30-39,485.43-18,543.30

Finding the Fourth Proportional to 26,319.30, 39,485.43 and 18,543.30

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Solution

The fourth proportional to 26,319.30, 39,485.43 and 18,543.30 is: 27,819.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,319.30 : 39,485.43 = 18,543.30 : x
  2. Step 2: Convert to fraction form
    26,319.30/39,485.43 = 18,543.30/x
  3. Step 3: Cross multiply
    26,319.30x = 39,485.43 × 18,543.30
  4. Step 4: Simplify right side
    26,319.30x = 732,190,174.12
  5. Step 5: Solve for x
    x = 732,190,174.12/26,319.30
  6. Step 6: Final answer
    x = 27,819.52

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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.