Home / 21,710.41-29,950.86-12,753.88

Finding the Fourth Proportional to 21,710.41, 29,950.86 and 12,753.88

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Solution

The fourth proportional to 21,710.41, 29,950.86 and 12,753.88 is: 17,594.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,710.41 : 29,950.86 = 12,753.88 : x
  2. Step 2: Convert to fraction form
    21,710.41/29,950.86 = 12,753.88/x
  3. Step 3: Cross multiply
    21,710.41x = 29,950.86 × 12,753.88
  4. Step 4: Simplify right side
    21,710.41x = 381,989,674.34
  5. Step 5: Solve for x
    x = 381,989,674.34/21,710.41
  6. Step 6: Final answer
    x = 17,594.77

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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.