Home / 35,643.08-49,189.20-20,538.12

Finding the Fourth Proportional to 35,643.08, 49,189.20 and 20,538.12

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Solution

The fourth proportional to 35,643.08, 49,189.20 and 20,538.12 is: 28,343.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,643.08 : 49,189.20 = 20,538.12 : x
  2. Step 2: Convert to fraction form
    35,643.08/49,189.20 = 20,538.12/x
  3. Step 3: Cross multiply
    35,643.08x = 49,189.20 × 20,538.12
  4. Step 4: Simplify right side
    35,643.08x = 1,010,253,692.30
  5. Step 5: Solve for x
    x = 1,010,253,692.30/35,643.08
  6. Step 6: Final answer
    x = 28,343.61

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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.