Home / 28,510.20-42,735.06-10,972.44

Finding the Fourth Proportional to 28,510.20, 42,735.06 and 10,972.44

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Solution

The fourth proportional to 28,510.20, 42,735.06 and 10,972.44 is: 16,447.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,510.20 : 42,735.06 = 10,972.44 : x
  2. Step 2: Convert to fraction form
    28,510.20/42,735.06 = 10,972.44/x
  3. Step 3: Cross multiply
    28,510.20x = 42,735.06 × 10,972.44
  4. Step 4: Simplify right side
    28,510.20x = 468,907,881.75
  5. Step 5: Solve for x
    x = 468,907,881.75/28,510.20
  6. Step 6: Final answer
    x = 16,447.02

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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.