Home / 30,056.78-45,089.27-12,522.50

Finding the Fourth Proportional to 30,056.78, 45,089.27 and 12,522.50

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Solution

The fourth proportional to 30,056.78, 45,089.27 and 12,522.50 is: 18,785.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,056.78 : 45,089.27 = 12,522.50 : x
  2. Step 2: Convert to fraction form
    30,056.78/45,089.27 = 12,522.50/x
  3. Step 3: Cross multiply
    30,056.78x = 45,089.27 × 12,522.50
  4. Step 4: Simplify right side
    30,056.78x = 564,630,383.58
  5. Step 5: Solve for x
    x = 564,630,383.58/30,056.78
  6. Step 6: Final answer
    x = 18,785.46

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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.