Home / 28,147.76-38,840.52-16,214.98

Finding the Fourth Proportional to 28,147.76, 38,840.52 and 16,214.98

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Solution

The fourth proportional to 28,147.76, 38,840.52 and 16,214.98 is: 22,374.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,147.76 : 38,840.52 = 16,214.98 : x
  2. Step 2: Convert to fraction form
    28,147.76/38,840.52 = 16,214.98/x
  3. Step 3: Cross multiply
    28,147.76x = 38,840.52 × 16,214.98
  4. Step 4: Simplify right side
    28,147.76x = 629,798,254.99
  5. Step 5: Solve for x
    x = 629,798,254.99/28,147.76
  6. Step 6: Final answer
    x = 22,374.72

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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.