Home / 26,915.30-40,380.15-19,139.30

Finding the Fourth Proportional to 26,915.30, 40,380.15 and 19,139.30

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Solution

The fourth proportional to 26,915.30, 40,380.15 and 19,139.30 is: 28,714.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,915.30 : 40,380.15 = 19,139.30 : x
  2. Step 2: Convert to fraction form
    26,915.30/40,380.15 = 19,139.30/x
  3. Step 3: Cross multiply
    26,915.30x = 40,380.15 × 19,139.30
  4. Step 4: Simplify right side
    26,915.30x = 772,847,804.90
  5. Step 5: Solve for x
    x = 772,847,804.90/26,915.30
  6. Step 6: Final answer
    x = 28,714.07

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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.