Home / 28,048.76-42,040.84-11,390.50

Finding the Fourth Proportional to 28,048.76, 42,040.84 and 11,390.50

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Solution

The fourth proportional to 28,048.76, 42,040.84 and 11,390.50 is: 17,072.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,048.76 : 42,040.84 = 11,390.50 : x
  2. Step 2: Convert to fraction form
    28,048.76/42,040.84 = 11,390.50/x
  3. Step 3: Cross multiply
    28,048.76x = 42,040.84 × 11,390.50
  4. Step 4: Simplify right side
    28,048.76x = 478,866,188.02
  5. Step 5: Solve for x
    x = 478,866,188.02/28,048.76
  6. Step 6: Final answer
    x = 17,072.63

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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.