Home / 28,432.08-42,591-14,157.54

Finding the Fourth Proportional to 28,432.08, 42,591 and 14,157.54

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Solution

The fourth proportional to 28,432.08, 42,591 and 14,157.54 is: 21,207.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,432.08 : 42,591 = 14,157.54 : x
  2. Step 2: Convert to fraction form
    28,432.08/42,591 = 14,157.54/x
  3. Step 3: Cross multiply
    28,432.08x = 42,591 × 14,157.54
  4. Step 4: Simplify right side
    28,432.08x = 602,983,786.14
  5. Step 5: Solve for x
    x = 602,983,786.14/28,432.08
  6. Step 6: Final answer
    x = 21,207.87

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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.