Home / 18,880.58-28,281.98-11,070.56

Finding the Fourth Proportional to 18,880.58, 28,281.98 and 11,070.56

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Solution

The fourth proportional to 18,880.58, 28,281.98 and 11,070.56 is: 16,583.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,880.58 : 28,281.98 = 11,070.56 : x
  2. Step 2: Convert to fraction form
    18,880.58/28,281.98 = 11,070.56/x
  3. Step 3: Cross multiply
    18,880.58x = 28,281.98 × 11,070.56
  4. Step 4: Simplify right side
    18,880.58x = 313,097,454.89
  5. Step 5: Solve for x
    x = 313,097,454.89/18,880.58
  6. Step 6: Final answer
    x = 16,583.04

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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.