Home / 28,986.24-40,017.60-19,079.04

Finding the Fourth Proportional to 28,986.24, 40,017.60 and 19,079.04

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Solution

The fourth proportional to 28,986.24, 40,017.60 and 19,079.04 is: 26,339.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,986.24 : 40,017.60 = 19,079.04 : x
  2. Step 2: Convert to fraction form
    28,986.24/40,017.60 = 19,079.04/x
  3. Step 3: Cross multiply
    28,986.24x = 40,017.60 × 19,079.04
  4. Step 4: Simplify right side
    28,986.24x = 763,497,391.10
  5. Step 5: Solve for x
    x = 763,497,391.10/28,986.24
  6. Step 6: Final answer
    x = 26,339.99

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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.