Home / 35,276.96-48,678.66-21,129.44

Finding the Fourth Proportional to 35,276.96, 48,678.66 and 21,129.44

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Solution

The fourth proportional to 35,276.96, 48,678.66 and 21,129.44 is: 29,156.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,276.96 : 48,678.66 = 21,129.44 : x
  2. Step 2: Convert to fraction form
    35,276.96/48,678.66 = 21,129.44/x
  3. Step 3: Cross multiply
    35,276.96x = 48,678.66 × 21,129.44
  4. Step 4: Simplify right side
    35,276.96x = 1,028,552,825.75
  5. Step 5: Solve for x
    x = 1,028,552,825.75/35,276.96
  6. Step 6: Final answer
    x = 29,156.50

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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.