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Finding the Fourth Proportional to 28,977.84, 43,488.72 and 19,113.84

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Solution

The fourth proportional to 28,977.84, 43,488.72 and 19,113.84 is: 28,685.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,977.84 : 43,488.72 = 19,113.84 : x
  2. Step 2: Convert to fraction form
    28,977.84/43,488.72 = 19,113.84/x
  3. Step 3: Cross multiply
    28,977.84x = 43,488.72 × 19,113.84
  4. Step 4: Simplify right side
    28,977.84x = 831,236,435.88
  5. Step 5: Solve for x
    x = 831,236,435.88/28,977.84
  6. Step 6: Final answer
    x = 28,685.24

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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.