Home / 39,533.76-54,557.87-21,628.78

Finding the Fourth Proportional to 39,533.76, 54,557.87 and 21,628.78

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Solution

The fourth proportional to 39,533.76, 54,557.87 and 21,628.78 is: 29,848.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,533.76 : 54,557.87 = 21,628.78 : x
  2. Step 2: Convert to fraction form
    39,533.76/54,557.87 = 21,628.78/x
  3. Step 3: Cross multiply
    39,533.76x = 54,557.87 × 21,628.78
  4. Step 4: Simplify right side
    39,533.76x = 1,180,019,922.96
  5. Step 5: Solve for x
    x = 1,180,019,922.96/39,533.76
  6. Step 6: Final answer
    x = 29,848.41

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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.