Home / 28,072.36-42,130.54-19,583.65

Finding the Fourth Proportional to 28,072.36, 42,130.54 and 19,583.65

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Solution

The fourth proportional to 28,072.36, 42,130.54 and 19,583.65 is: 29,390.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,072.36 : 42,130.54 = 19,583.65 : x
  2. Step 2: Convert to fraction form
    28,072.36/42,130.54 = 19,583.65/x
  3. Step 3: Cross multiply
    28,072.36x = 42,130.54 × 19,583.65
  4. Step 4: Simplify right side
    28,072.36x = 825,069,749.67
  5. Step 5: Solve for x
    x = 825,069,749.67/28,072.36
  6. Step 6: Final answer
    x = 29,390.82

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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.