Home / 22,980.07-31,712.52-12,908.52

Finding the Fourth Proportional to 22,980.07, 31,712.52 and 12,908.52

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Solution

The fourth proportional to 22,980.07, 31,712.52 and 12,908.52 is: 17,813.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,980.07 : 31,712.52 = 12,908.52 : x
  2. Step 2: Convert to fraction form
    22,980.07/31,712.52 = 12,908.52/x
  3. Step 3: Cross multiply
    22,980.07x = 31,712.52 × 12,908.52
  4. Step 4: Simplify right side
    22,980.07x = 409,361,698.67
  5. Step 5: Solve for x
    x = 409,361,698.67/22,980.07
  6. Step 6: Final answer
    x = 17,813.77

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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.