Home / 23,220.12-34,955.72-21,153.41

Finding the Fourth Proportional to 23,220.12, 34,955.72 and 21,153.41

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Solution

The fourth proportional to 23,220.12, 34,955.72 and 21,153.41 is: 31,844.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,220.12 : 34,955.72 = 21,153.41 : x
  2. Step 2: Convert to fraction form
    23,220.12/34,955.72 = 21,153.41/x
  3. Step 3: Cross multiply
    23,220.12x = 34,955.72 × 21,153.41
  4. Step 4: Simplify right side
    23,220.12x = 739,432,396.46
  5. Step 5: Solve for x
    x = 739,432,396.46/23,220.12
  6. Step 6: Final answer
    x = 31,844.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.