Home / 28,060.56-42,048.28-20,629.64

Finding the Fourth Proportional to 28,060.56, 42,048.28 and 20,629.64

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Solution

The fourth proportional to 28,060.56, 42,048.28 and 20,629.64 is: 30,913.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,060.56 : 42,048.28 = 20,629.64 : x
  2. Step 2: Convert to fraction form
    28,060.56/42,048.28 = 20,629.64/x
  3. Step 3: Cross multiply
    28,060.56x = 42,048.28 × 20,629.64
  4. Step 4: Simplify right side
    28,060.56x = 867,440,879.02
  5. Step 5: Solve for x
    x = 867,440,879.02/28,060.56
  6. Step 6: Final answer
    x = 30,913.17

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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.