Home / 22,750.94-31,395.44-12,678.84

Finding the Fourth Proportional to 22,750.94, 31,395.44 and 12,678.84

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Solution

The fourth proportional to 22,750.94, 31,395.44 and 12,678.84 is: 17,496.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,750.94 : 31,395.44 = 12,678.84 : x
  2. Step 2: Convert to fraction form
    22,750.94/31,395.44 = 12,678.84/x
  3. Step 3: Cross multiply
    22,750.94x = 31,395.44 × 12,678.84
  4. Step 4: Simplify right side
    22,750.94x = 398,057,697.10
  5. Step 5: Solve for x
    x = 398,057,697.10/22,750.94
  6. Step 6: Final answer
    x = 17,496.32

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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.