Home / 28,064.60-42,096.90-7,288.10

Finding the Fourth Proportional to 28,064.60, 42,096.90 and 7,288.10

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Solution

The fourth proportional to 28,064.60, 42,096.90 and 7,288.10 is: 10,932.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,064.60 : 42,096.90 = 7,288.10 : x
  2. Step 2: Convert to fraction form
    28,064.60/42,096.90 = 7,288.10/x
  3. Step 3: Cross multiply
    28,064.60x = 42,096.90 × 7,288.10
  4. Step 4: Simplify right side
    28,064.60x = 306,806,416.89
  5. Step 5: Solve for x
    x = 306,806,416.89/28,064.60
  6. Step 6: Final answer
    x = 10,932.15

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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.