Home / 28,289.88-42,434.94-9,570.03

Finding the Fourth Proportional to 28,289.88, 42,434.94 and 9,570.03

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Solution

The fourth proportional to 28,289.88, 42,434.94 and 9,570.03 is: 14,355.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,289.88 : 42,434.94 = 9,570.03 : x
  2. Step 2: Convert to fraction form
    28,289.88/42,434.94 = 9,570.03/x
  3. Step 3: Cross multiply
    28,289.88x = 42,434.94 × 9,570.03
  4. Step 4: Simplify right side
    28,289.88x = 406,103,648.85
  5. Step 5: Solve for x
    x = 406,103,648.85/28,289.88
  6. Step 6: Final answer
    x = 14,355.09

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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.