Home / 28,027.80-42,041.70-9,559.80

Finding the Fourth Proportional to 28,027.80, 42,041.70 and 9,559.80

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Solution

The fourth proportional to 28,027.80, 42,041.70 and 9,559.80 is: 14,339.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,027.80 : 42,041.70 = 9,559.80 : x
  2. Step 2: Convert to fraction form
    28,027.80/42,041.70 = 9,559.80/x
  3. Step 3: Cross multiply
    28,027.80x = 42,041.70 × 9,559.80
  4. Step 4: Simplify right side
    28,027.80x = 401,910,243.66
  5. Step 5: Solve for x
    x = 401,910,243.66/28,027.80
  6. Step 6: Final answer
    x = 14,339.70

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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.