Home / 25,720.58-38,581.98-12,584

Finding the Fourth Proportional to 25,720.58, 38,581.98 and 12,584

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Solution

The fourth proportional to 25,720.58, 38,581.98 and 12,584 is: 18,876.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,720.58 : 38,581.98 = 12,584 : x
  2. Step 2: Convert to fraction form
    25,720.58/38,581.98 = 12,584/x
  3. Step 3: Cross multiply
    25,720.58x = 38,581.98 × 12,584
  4. Step 4: Simplify right side
    25,720.58x = 485,515,636.32
  5. Step 5: Solve for x
    x = 485,515,636.32/25,720.58
  6. Step 6: Final answer
    x = 18,876.54

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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.