Home / 22,780.08-31,435.56-12,708.36

Finding the Fourth Proportional to 22,780.08, 31,435.56 and 12,708.36

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Solution

The fourth proportional to 22,780.08, 31,435.56 and 12,708.36 is: 17,537.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,780.08 : 31,435.56 = 12,708.36 : x
  2. Step 2: Convert to fraction form
    22,780.08/31,435.56 = 12,708.36/x
  3. Step 3: Cross multiply
    22,780.08x = 31,435.56 × 12,708.36
  4. Step 4: Simplify right side
    22,780.08x = 399,494,413.28
  5. Step 5: Solve for x
    x = 399,494,413.28/22,780.08
  6. Step 6: Final answer
    x = 17,537.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.