Home / 39,181.61-54,070.74-21,276.92

Finding the Fourth Proportional to 39,181.61, 54,070.74 and 21,276.92

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Solution

The fourth proportional to 39,181.61, 54,070.74 and 21,276.92 is: 29,362.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,181.61 : 54,070.74 = 21,276.92 : x
  2. Step 2: Convert to fraction form
    39,181.61/54,070.74 = 21,276.92/x
  3. Step 3: Cross multiply
    39,181.61x = 54,070.74 × 21,276.92
  4. Step 4: Simplify right side
    39,181.61x = 1,150,458,944.50
  5. Step 5: Solve for x
    x = 1,150,458,944.50/39,181.61
  6. Step 6: Final answer
    x = 29,362.22

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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.