Home / 28,582.20-42,866.58-7,800.76

Finding the Fourth Proportional to 28,582.20, 42,866.58 and 7,800.76

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Solution

The fourth proportional to 28,582.20, 42,866.58 and 7,800.76 is: 11,699.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,582.20 : 42,866.58 = 7,800.76 : x
  2. Step 2: Convert to fraction form
    28,582.20/42,866.58 = 7,800.76/x
  3. Step 3: Cross multiply
    28,582.20x = 42,866.58 × 7,800.76
  4. Step 4: Simplify right side
    28,582.20x = 334,391,902.60
  5. Step 5: Solve for x
    x = 334,391,902.60/28,582.20
  6. Step 6: Final answer
    x = 11,699.31

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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.