Home / 19,621.51-29,431.99-4,830.55

Finding the Fourth Proportional to 19,621.51, 29,431.99 and 4,830.55

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Solution

The fourth proportional to 19,621.51, 29,431.99 and 4,830.55 is: 7,245.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,621.51 : 29,431.99 = 4,830.55 : x
  2. Step 2: Convert to fraction form
    19,621.51/29,431.99 = 4,830.55/x
  3. Step 3: Cross multiply
    19,621.51x = 29,431.99 × 4,830.55
  4. Step 4: Simplify right side
    19,621.51x = 142,172,699.29
  5. Step 5: Solve for x
    x = 142,172,699.29/19,621.51
  6. Step 6: Final answer
    x = 7,245.76

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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.