Home / 30,273.65-45,418.58-21,525.65

Finding the Fourth Proportional to 30,273.65, 45,418.58 and 21,525.65

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Solution

The fourth proportional to 30,273.65, 45,418.58 and 21,525.65 is: 32,294.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,273.65 : 45,418.58 = 21,525.65 : x
  2. Step 2: Convert to fraction form
    30,273.65/45,418.58 = 21,525.65/x
  3. Step 3: Cross multiply
    30,273.65x = 45,418.58 × 21,525.65
  4. Step 4: Simplify right side
    30,273.65x = 977,664,348.95
  5. Step 5: Solve for x
    x = 977,664,348.95/30,273.65
  6. Step 6: Final answer
    x = 32,294.23

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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.