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Finding the Fourth Proportional to 28,014.36, 38,660.02 and 16,077.40

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Solution

The fourth proportional to 28,014.36, 38,660.02 and 16,077.40 is: 22,186.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,014.36 : 38,660.02 = 16,077.40 : x
  2. Step 2: Convert to fraction form
    28,014.36/38,660.02 = 16,077.40/x
  3. Step 3: Cross multiply
    28,014.36x = 38,660.02 × 16,077.40
  4. Step 4: Simplify right side
    28,014.36x = 621,552,605.55
  5. Step 5: Solve for x
    x = 621,552,605.55/28,014.36
  6. Step 6: Final answer
    x = 22,186.93

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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.