Home / 21,915.63-30,243.51-12,484.26

Finding the Fourth Proportional to 21,915.63, 30,243.51 and 12,484.26

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Solution

The fourth proportional to 21,915.63, 30,243.51 and 12,484.26 is: 17,228.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,915.63 : 30,243.51 = 12,484.26 : x
  2. Step 2: Convert to fraction form
    21,915.63/30,243.51 = 12,484.26/x
  3. Step 3: Cross multiply
    21,915.63x = 30,243.51 × 12,484.26
  4. Step 4: Simplify right side
    21,915.63x = 377,567,842.15
  5. Step 5: Solve for x
    x = 377,567,842.15/21,915.63
  6. Step 6: Final answer
    x = 17,228.24

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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.