Home / 22,989.60-31,724.46-12,918.46

Finding the Fourth Proportional to 22,989.60, 31,724.46 and 12,918.46

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Solution

The fourth proportional to 22,989.60, 31,724.46 and 12,918.46 is: 17,826.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,989.60 : 31,724.46 = 12,918.46 : x
  2. Step 2: Convert to fraction form
    22,989.60/31,724.46 = 12,918.46/x
  3. Step 3: Cross multiply
    22,989.60x = 31,724.46 × 12,918.46
  4. Step 4: Simplify right side
    22,989.60x = 409,831,167.53
  5. Step 5: Solve for x
    x = 409,831,167.53/22,989.60
  6. Step 6: Final answer
    x = 17,826.81

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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.