Home / 30,392.88-41,961.44-20,848.76

Finding the Fourth Proportional to 30,392.88, 41,961.44 and 20,848.76

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Solution

The fourth proportional to 30,392.88, 41,961.44 and 20,848.76 is: 28,784.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,392.88 : 41,961.44 = 20,848.76 : x
  2. Step 2: Convert to fraction form
    30,392.88/41,961.44 = 20,848.76/x
  3. Step 3: Cross multiply
    30,392.88x = 41,961.44 × 20,848.76
  4. Step 4: Simplify right side
    30,392.88x = 874,843,677.76
  5. Step 5: Solve for x
    x = 874,843,677.76/30,392.88
  6. Step 6: Final answer
    x = 28,784.49

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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.