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Finding the Fourth Proportional to 28,237.95, 38,968.02 and 16,300.98

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Solution

The fourth proportional to 28,237.95, 38,968.02 and 16,300.98 is: 22,495.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,237.95 : 38,968.02 = 16,300.98 : x
  2. Step 2: Convert to fraction form
    28,237.95/38,968.02 = 16,300.98/x
  3. Step 3: Cross multiply
    28,237.95x = 38,968.02 × 16,300.98
  4. Step 4: Simplify right side
    28,237.95x = 635,216,914.66
  5. Step 5: Solve for x
    x = 635,216,914.66/28,237.95
  6. Step 6: Final answer
    x = 22,495.15

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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.