Home / 20,558.16-30,837.13-4,975.79

Finding the Fourth Proportional to 20,558.16, 30,837.13 and 4,975.79

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Solution

The fourth proportional to 20,558.16, 30,837.13 and 4,975.79 is: 7,463.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,558.16 : 30,837.13 = 4,975.79 : x
  2. Step 2: Convert to fraction form
    20,558.16/30,837.13 = 4,975.79/x
  3. Step 3: Cross multiply
    20,558.16x = 30,837.13 × 4,975.79
  4. Step 4: Simplify right side
    20,558.16x = 153,438,916.46
  5. Step 5: Solve for x
    x = 153,438,916.46/20,558.16
  6. Step 6: Final answer
    x = 7,463.65

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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.