Home / 21,248.55-29,321.75-12,295.41

Finding the Fourth Proportional to 21,248.55, 29,321.75 and 12,295.41

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Solution

The fourth proportional to 21,248.55, 29,321.75 and 12,295.41 is: 16,966.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,248.55 : 29,321.75 = 12,295.41 : x
  2. Step 2: Convert to fraction form
    21,248.55/29,321.75 = 12,295.41/x
  3. Step 3: Cross multiply
    21,248.55x = 29,321.75 × 12,295.41
  4. Step 4: Simplify right side
    21,248.55x = 360,522,876.69
  5. Step 5: Solve for x
    x = 360,522,876.69/21,248.55
  6. Step 6: Final answer
    x = 16,966.94

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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.