Home / 45,021.04-67,539.24-13,855.60

Finding the Fourth Proportional to 45,021.04, 67,539.24 and 13,855.60

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Solution

The fourth proportional to 45,021.04, 67,539.24 and 13,855.60 is: 20,785.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,021.04 : 67,539.24 = 13,855.60 : x
  2. Step 2: Convert to fraction form
    45,021.04/67,539.24 = 13,855.60/x
  3. Step 3: Cross multiply
    45,021.04x = 67,539.24 × 13,855.60
  4. Step 4: Simplify right side
    45,021.04x = 935,796,693.74
  5. Step 5: Solve for x
    x = 935,796,693.74/45,021.04
  6. Step 6: Final answer
    x = 20,785.76

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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.