Home / 28,406.86-42,548.33-23,420.50

Finding the Fourth Proportional to 28,406.86, 42,548.33 and 23,420.50

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Solution

The fourth proportional to 28,406.86, 42,548.33 and 23,420.50 is: 35,079.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,406.86 : 42,548.33 = 23,420.50 : x
  2. Step 2: Convert to fraction form
    28,406.86/42,548.33 = 23,420.50/x
  3. Step 3: Cross multiply
    28,406.86x = 42,548.33 × 23,420.50
  4. Step 4: Simplify right side
    28,406.86x = 996,503,162.77
  5. Step 5: Solve for x
    x = 996,503,162.77/28,406.86
  6. Step 6: Final answer
    x = 35,079.67

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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.