Home / 21,212.46-29,260.26-15,252.21

Finding the Fourth Proportional to 21,212.46, 29,260.26 and 15,252.21

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Solution

The fourth proportional to 21,212.46, 29,260.26 and 15,252.21 is: 21,038.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,212.46 : 29,260.26 = 15,252.21 : x
  2. Step 2: Convert to fraction form
    21,212.46/29,260.26 = 15,252.21/x
  3. Step 3: Cross multiply
    21,212.46x = 29,260.26 × 15,252.21
  4. Step 4: Simplify right side
    21,212.46x = 446,283,630.17
  5. Step 5: Solve for x
    x = 446,283,630.17/21,212.46
  6. Step 6: Final answer
    x = 21,038.75

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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.