Home / 28,228.23-42,312.48-10,447.44

Finding the Fourth Proportional to 28,228.23, 42,312.48 and 10,447.44

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Solution

The fourth proportional to 28,228.23, 42,312.48 and 10,447.44 is: 15,660.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,228.23 : 42,312.48 = 10,447.44 : x
  2. Step 2: Convert to fraction form
    28,228.23/42,312.48 = 10,447.44/x
  3. Step 3: Cross multiply
    28,228.23x = 42,312.48 × 10,447.44
  4. Step 4: Simplify right side
    28,228.23x = 442,057,096.05
  5. Step 5: Solve for x
    x = 442,057,096.05/28,228.23
  6. Step 6: Final answer
    x = 15,660.11

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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.