Home / 19,223.84-28,821.40-12,966.28

Finding the Fourth Proportional to 19,223.84, 28,821.40 and 12,966.28

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Solution

The fourth proportional to 19,223.84, 28,821.40 and 12,966.28 is: 19,439.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,223.84 : 28,821.40 = 12,966.28 : x
  2. Step 2: Convert to fraction form
    19,223.84/28,821.40 = 12,966.28/x
  3. Step 3: Cross multiply
    19,223.84x = 28,821.40 × 12,966.28
  4. Step 4: Simplify right side
    19,223.84x = 373,706,342.39
  5. Step 5: Solve for x
    x = 373,706,342.39/19,223.84
  6. Step 6: Final answer
    x = 19,439.73

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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.