Home / 22,949.52-31,670.64-12,880.14

Finding the Fourth Proportional to 22,949.52, 31,670.64 and 12,880.14

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Solution

The fourth proportional to 22,949.52, 31,670.64 and 12,880.14 is: 17,774.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,949.52 : 31,670.64 = 12,880.14 : x
  2. Step 2: Convert to fraction form
    22,949.52/31,670.64 = 12,880.14/x
  3. Step 3: Cross multiply
    22,949.52x = 31,670.64 × 12,880.14
  4. Step 4: Simplify right side
    22,949.52x = 407,922,277.09
  5. Step 5: Solve for x
    x = 407,922,277.09/22,949.52
  6. Step 6: Final answer
    x = 17,774.76

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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.