Home / 19,343.84-28,977.28-12,750

Finding the Fourth Proportional to 19,343.84, 28,977.28 and 12,750

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Solution

The fourth proportional to 19,343.84, 28,977.28 and 12,750 is: 19,099.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,343.84 : 28,977.28 = 12,750 : x
  2. Step 2: Convert to fraction form
    19,343.84/28,977.28 = 12,750/x
  3. Step 3: Cross multiply
    19,343.84x = 28,977.28 × 12,750
  4. Step 4: Simplify right side
    19,343.84x = 369,460,320
  5. Step 5: Solve for x
    x = 369,460,320/19,343.84
  6. Step 6: Final answer
    x = 19,099.64

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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.