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Finding the Fourth Proportional to 30,784.70, 43,011.10 and 30,784.70

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Solution

The fourth proportional to 30,784.70, 43,011.10 and 30,784.70 is: 43,011.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,784.70 : 43,011.10 = 30,784.70 : x
  2. Step 2: Convert to fraction form
    30,784.70/43,011.10 = 30,784.70/x
  3. Step 3: Cross multiply
    30,784.70x = 43,011.10 × 30,784.70
  4. Step 4: Simplify right side
    30,784.70x = 1,324,083,810.17
  5. Step 5: Solve for x
    x = 1,324,083,810.17/30,784.70
  6. Step 6: Final answer
    x = 43,011.10

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.