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Finding the Fourth Proportional to 34,174.80, 51,262.20 and 20,984.40

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Solution

The fourth proportional to 34,174.80, 51,262.20 and 20,984.40 is: 31,476.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,174.80 : 51,262.20 = 20,984.40 : x
  2. Step 2: Convert to fraction form
    34,174.80/51,262.20 = 20,984.40/x
  3. Step 3: Cross multiply
    34,174.80x = 51,262.20 × 20,984.40
  4. Step 4: Simplify right side
    34,174.80x = 1,075,706,509.68
  5. Step 5: Solve for x
    x = 1,075,706,509.68/34,174.80
  6. Step 6: Final answer
    x = 31,476.60

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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.