Home / 28,099.80-42,165.90-10,582.20

Finding the Fourth Proportional to 28,099.80, 42,165.90 and 10,582.20

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Solution

The fourth proportional to 28,099.80, 42,165.90 and 10,582.20 is: 15,879.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,099.80 : 42,165.90 = 10,582.20 : x
  2. Step 2: Convert to fraction form
    28,099.80/42,165.90 = 10,582.20/x
  3. Step 3: Cross multiply
    28,099.80x = 42,165.90 × 10,582.20
  4. Step 4: Simplify right side
    28,099.80x = 446,207,986.98
  5. Step 5: Solve for x
    x = 446,207,986.98/28,099.80
  6. Step 6: Final answer
    x = 15,879.40

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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.