Home / 20,879.41-28,774.93-14,829.91

Finding the Fourth Proportional to 20,879.41, 28,774.93 and 14,829.91

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Solution

The fourth proportional to 20,879.41, 28,774.93 and 14,829.91 is: 20,437.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,879.41 : 28,774.93 = 14,829.91 : x
  2. Step 2: Convert to fraction form
    20,879.41/28,774.93 = 14,829.91/x
  3. Step 3: Cross multiply
    20,879.41x = 28,774.93 × 14,829.91
  4. Step 4: Simplify right side
    20,879.41x = 426,729,657.02
  5. Step 5: Solve for x
    x = 426,729,657.02/20,879.41
  6. Step 6: Final answer
    x = 20,437.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.