Home / 28,127.53-42,212.06-13,336.50

Finding the Fourth Proportional to 28,127.53, 42,212.06 and 13,336.50

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Solution

The fourth proportional to 28,127.53, 42,212.06 and 13,336.50 is: 20,014.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,127.53 : 42,212.06 = 13,336.50 : x
  2. Step 2: Convert to fraction form
    28,127.53/42,212.06 = 13,336.50/x
  3. Step 3: Cross multiply
    28,127.53x = 42,212.06 × 13,336.50
  4. Step 4: Simplify right side
    28,127.53x = 562,961,138.19
  5. Step 5: Solve for x
    x = 562,961,138.19/28,127.53
  6. Step 6: Final answer
    x = 20,014.60

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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.