Home / 20,894.61-31,345.08-7,570.74

Finding the Fourth Proportional to 20,894.61, 31,345.08 and 7,570.74

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Solution

The fourth proportional to 20,894.61, 31,345.08 and 7,570.74 is: 11,357.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,894.61 : 31,345.08 = 7,570.74 : x
  2. Step 2: Convert to fraction form
    20,894.61/31,345.08 = 7,570.74/x
  3. Step 3: Cross multiply
    20,894.61x = 31,345.08 × 7,570.74
  4. Step 4: Simplify right side
    20,894.61x = 237,305,450.96
  5. Step 5: Solve for x
    x = 237,305,450.96/20,894.61
  6. Step 6: Final answer
    x = 11,357.26

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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.