Home / 28,305.90-42,433.74-14,247.54

Finding the Fourth Proportional to 28,305.90, 42,433.74 and 14,247.54

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Solution

The fourth proportional to 28,305.90, 42,433.74 and 14,247.54 is: 21,358.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,305.90 : 42,433.74 = 14,247.54 : x
  2. Step 2: Convert to fraction form
    28,305.90/42,433.74 = 14,247.54/x
  3. Step 3: Cross multiply
    28,305.90x = 42,433.74 × 14,247.54
  4. Step 4: Simplify right side
    28,305.90x = 604,576,408.00
  5. Step 5: Solve for x
    x = 604,576,408.00/28,305.90
  6. Step 6: Final answer
    x = 21,358.67

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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.