Home / 38,990.16-58,485.24-12,697.56

Finding the Fourth Proportional to 38,990.16, 58,485.24 and 12,697.56

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Solution

The fourth proportional to 38,990.16, 58,485.24 and 12,697.56 is: 19,046.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,990.16 : 58,485.24 = 12,697.56 : x
  2. Step 2: Convert to fraction form
    38,990.16/58,485.24 = 12,697.56/x
  3. Step 3: Cross multiply
    38,990.16x = 58,485.24 × 12,697.56
  4. Step 4: Simplify right side
    38,990.16x = 742,619,844.01
  5. Step 5: Solve for x
    x = 742,619,844.01/38,990.16
  6. Step 6: Final answer
    x = 19,046.34

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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.