Home / 22,558.84-31,130.94-12,487.30

Finding the Fourth Proportional to 22,558.84, 31,130.94 and 12,487.30

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Solution

The fourth proportional to 22,558.84, 31,130.94 and 12,487.30 is: 17,232.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,558.84 : 31,130.94 = 12,487.30 : x
  2. Step 2: Convert to fraction form
    22,558.84/31,130.94 = 12,487.30/x
  3. Step 3: Cross multiply
    22,558.84x = 31,130.94 × 12,487.30
  4. Step 4: Simplify right side
    22,558.84x = 388,741,387.06
  5. Step 5: Solve for x
    x = 388,741,387.06/22,558.84
  6. Step 6: Final answer
    x = 17,232.33

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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.