Home / 34,285.12-51,390.24-13,485.76

Finding the Fourth Proportional to 34,285.12, 51,390.24 and 13,485.76

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Solution

The fourth proportional to 34,285.12, 51,390.24 and 13,485.76 is: 20,213.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,285.12 : 51,390.24 = 13,485.76 : x
  2. Step 2: Convert to fraction form
    34,285.12/51,390.24 = 13,485.76/x
  3. Step 3: Cross multiply
    34,285.12x = 51,390.24 × 13,485.76
  4. Step 4: Simplify right side
    34,285.12x = 693,036,442.98
  5. Step 5: Solve for x
    x = 693,036,442.98/34,285.12
  6. Step 6: Final answer
    x = 20,213.91

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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.