Home / 28,064.71-42,096.96-7,288.21

Finding the Fourth Proportional to 28,064.71, 42,096.96 and 7,288.21

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Solution

The fourth proportional to 28,064.71, 42,096.96 and 7,288.21 is: 10,932.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,064.71 : 42,096.96 = 7,288.21 : x
  2. Step 2: Convert to fraction form
    28,064.71/42,096.96 = 7,288.21/x
  3. Step 3: Cross multiply
    28,064.71x = 42,096.96 × 7,288.21
  4. Step 4: Simplify right side
    28,064.71x = 306,811,484.84
  5. Step 5: Solve for x
    x = 306,811,484.84/28,064.71
  6. Step 6: Final answer
    x = 10,932.29

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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.