Home / 28,218.70-42,325.08-11,580.49

Finding the Fourth Proportional to 28,218.70, 42,325.08 and 11,580.49

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Solution

The fourth proportional to 28,218.70, 42,325.08 and 11,580.49 is: 17,369.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,218.70 : 42,325.08 = 11,580.49 : x
  2. Step 2: Convert to fraction form
    28,218.70/42,325.08 = 11,580.49/x
  3. Step 3: Cross multiply
    28,218.70x = 42,325.08 × 11,580.49
  4. Step 4: Simplify right side
    28,218.70x = 490,145,165.69
  5. Step 5: Solve for x
    x = 490,145,165.69/28,218.70
  6. Step 6: Final answer
    x = 17,369.52

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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.