Home / 30,312.04-41,851.50-18,986.44

Finding the Fourth Proportional to 30,312.04, 41,851.50 and 18,986.44

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Solution

The fourth proportional to 30,312.04, 41,851.50 and 18,986.44 is: 26,214.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,312.04 : 41,851.50 = 18,986.44 : x
  2. Step 2: Convert to fraction form
    30,312.04/41,851.50 = 18,986.44/x
  3. Step 3: Cross multiply
    30,312.04x = 41,851.50 × 18,986.44
  4. Step 4: Simplify right side
    30,312.04x = 794,610,993.66
  5. Step 5: Solve for x
    x = 794,610,993.66/30,312.04
  6. Step 6: Final answer
    x = 26,214.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.