Home / 28,531.80-42,794.46-11,000.16

Finding the Fourth Proportional to 28,531.80, 42,794.46 and 11,000.16

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Solution

The fourth proportional to 28,531.80, 42,794.46 and 11,000.16 is: 16,498.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,531.80 : 42,794.46 = 11,000.16 : x
  2. Step 2: Convert to fraction form
    28,531.80/42,794.46 = 11,000.16/x
  3. Step 3: Cross multiply
    28,531.80x = 42,794.46 × 11,000.16
  4. Step 4: Simplify right side
    28,531.80x = 470,745,907.11
  5. Step 5: Solve for x
    x = 470,745,907.11/28,531.80
  6. Step 6: Final answer
    x = 16,498.99

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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.