Home / 19,040.78-28,542.59-7,950.63

Finding the Fourth Proportional to 19,040.78, 28,542.59 and 7,950.63

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Solution

The fourth proportional to 19,040.78, 28,542.59 and 7,950.63 is: 11,918.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,040.78 : 28,542.59 = 7,950.63 : x
  2. Step 2: Convert to fraction form
    19,040.78/28,542.59 = 7,950.63/x
  3. Step 3: Cross multiply
    19,040.78x = 28,542.59 × 7,950.63
  4. Step 4: Simplify right side
    19,040.78x = 226,931,532.58
  5. Step 5: Solve for x
    x = 226,931,532.58/19,040.78
  6. Step 6: Final answer
    x = 11,918.18

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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.