Home / 30,837.30-46,277.55-19,770.90

Finding the Fourth Proportional to 30,837.30, 46,277.55 and 19,770.90

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Solution

The fourth proportional to 30,837.30, 46,277.55 and 19,770.90 is: 29,670.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,837.30 : 46,277.55 = 19,770.90 : x
  2. Step 2: Convert to fraction form
    30,837.30/46,277.55 = 19,770.90/x
  3. Step 3: Cross multiply
    30,837.30x = 46,277.55 × 19,770.90
  4. Step 4: Simplify right side
    30,837.30x = 914,948,813.30
  5. Step 5: Solve for x
    x = 914,948,813.30/30,837.30
  6. Step 6: Final answer
    x = 29,670.20

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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.