Home / 34,345.67-51,516.81-20,122.20

Finding the Fourth Proportional to 34,345.67, 51,516.81 and 20,122.20

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Solution

The fourth proportional to 34,345.67, 51,516.81 and 20,122.20 is: 30,182.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,345.67 : 51,516.81 = 20,122.20 : x
  2. Step 2: Convert to fraction form
    34,345.67/51,516.81 = 20,122.20/x
  3. Step 3: Cross multiply
    34,345.67x = 51,516.81 × 20,122.20
  4. Step 4: Simplify right side
    34,345.67x = 1,036,631,554.18
  5. Step 5: Solve for x
    x = 1,036,631,554.18/34,345.67
  6. Step 6: Final answer
    x = 30,182.31

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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.