Home / 18,848.44-28,277.20-13,312.60

Finding the Fourth Proportional to 18,848.44, 28,277.20 and 13,312.60

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Solution

The fourth proportional to 18,848.44, 28,277.20 and 13,312.60 is: 19,972.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,848.44 : 28,277.20 = 13,312.60 : x
  2. Step 2: Convert to fraction form
    18,848.44/28,277.20 = 13,312.60/x
  3. Step 3: Cross multiply
    18,848.44x = 28,277.20 × 13,312.60
  4. Step 4: Simplify right side
    18,848.44x = 376,443,052.72
  5. Step 5: Solve for x
    x = 376,443,052.72/18,848.44
  6. Step 6: Final answer
    x = 19,972.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.