Home / 21,712.56-29,977.53-16,702.95

Finding the Fourth Proportional to 21,712.56, 29,977.53 and 16,702.95

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Solution

The fourth proportional to 21,712.56, 29,977.53 and 16,702.95 is: 23,061.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,712.56 : 29,977.53 = 16,702.95 : x
  2. Step 2: Convert to fraction form
    21,712.56/29,977.53 = 16,702.95/x
  3. Step 3: Cross multiply
    21,712.56x = 29,977.53 × 16,702.95
  4. Step 4: Simplify right side
    21,712.56x = 500,713,234.49
  5. Step 5: Solve for x
    x = 500,713,234.49/21,712.56
  6. Step 6: Final answer
    x = 23,061.00

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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.