Home / 28,968.84-43,343.91-19,120.05

Finding the Fourth Proportional to 28,968.84, 43,343.91 and 19,120.05

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Solution

The fourth proportional to 28,968.84, 43,343.91 and 19,120.05 is: 28,607.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,968.84 : 43,343.91 = 19,120.05 : x
  2. Step 2: Convert to fraction form
    28,968.84/43,343.91 = 19,120.05/x
  3. Step 3: Cross multiply
    28,968.84x = 43,343.91 × 19,120.05
  4. Step 4: Simplify right side
    28,968.84x = 828,737,726.40
  5. Step 5: Solve for x
    x = 828,737,726.40/28,968.84
  6. Step 6: Final answer
    x = 28,607.90

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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.