Home / 45,315.04-67,984.77-19,012.72

Finding the Fourth Proportional to 45,315.04, 67,984.77 and 19,012.72

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Solution

The fourth proportional to 45,315.04, 67,984.77 and 19,012.72 is: 28,524.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,315.04 : 67,984.77 = 19,012.72 : x
  2. Step 2: Convert to fraction form
    45,315.04/67,984.77 = 19,012.72/x
  3. Step 3: Cross multiply
    45,315.04x = 67,984.77 × 19,012.72
  4. Step 4: Simplify right side
    45,315.04x = 1,292,575,396.27
  5. Step 5: Solve for x
    x = 1,292,575,396.27/45,315.04
  6. Step 6: Final answer
    x = 28,524.20

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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.