Home / 34,169.10-51,253.65-20,978.70

Finding the Fourth Proportional to 34,169.10, 51,253.65 and 20,978.70

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Solution

The fourth proportional to 34,169.10, 51,253.65 and 20,978.70 is: 31,468.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,169.10 : 51,253.65 = 20,978.70 : x
  2. Step 2: Convert to fraction form
    34,169.10/51,253.65 = 20,978.70/x
  3. Step 3: Cross multiply
    34,169.10x = 51,253.65 × 20,978.70
  4. Step 4: Simplify right side
    34,169.10x = 1,075,234,947.26
  5. Step 5: Solve for x
    x = 1,075,234,947.26/34,169.10
  6. Step 6: Final answer
    x = 31,468.05

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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.