Home / 22,431.70-30,955.84-12,359.93

Finding the Fourth Proportional to 22,431.70, 30,955.84 and 12,359.93

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Solution

The fourth proportional to 22,431.70, 30,955.84 and 12,359.93 is: 17,056.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,431.70 : 30,955.84 = 12,359.93 : x
  2. Step 2: Convert to fraction form
    22,431.70/30,955.84 = 12,359.93/x
  3. Step 3: Cross multiply
    22,431.70x = 30,955.84 × 12,359.93
  4. Step 4: Simplify right side
    22,431.70x = 382,611,829.81
  5. Step 5: Solve for x
    x = 382,611,829.81/22,431.70
  6. Step 6: Final answer
    x = 17,056.75

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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.