Home / 28,031.91-42,048.01-7,255.41

Finding the Fourth Proportional to 28,031.91, 42,048.01 and 7,255.41

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Solution

The fourth proportional to 28,031.91, 42,048.01 and 7,255.41 is: 10,883.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,031.91 : 42,048.01 = 7,255.41 : x
  2. Step 2: Convert to fraction form
    28,031.91/42,048.01 = 7,255.41/x
  3. Step 3: Cross multiply
    28,031.91x = 42,048.01 × 7,255.41
  4. Step 4: Simplify right side
    28,031.91x = 305,075,403.62
  5. Step 5: Solve for x
    x = 305,075,403.62/28,031.91
  6. Step 6: Final answer
    x = 10,883.15

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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.