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Finding the Fourth Proportional to 20,077.40, 30,116.10 and 14,893.40

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Solution

The fourth proportional to 20,077.40, 30,116.10 and 14,893.40 is: 22,340.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,077.40 : 30,116.10 = 14,893.40 : x
  2. Step 2: Convert to fraction form
    20,077.40/30,116.10 = 14,893.40/x
  3. Step 3: Cross multiply
    20,077.40x = 30,116.10 × 14,893.40
  4. Step 4: Simplify right side
    20,077.40x = 448,531,123.74
  5. Step 5: Solve for x
    x = 448,531,123.74/20,077.40
  6. Step 6: Final answer
    x = 22,340.10

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1.5x scale

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.