Home / 21,281.94-29,369.04-11,852.70

Finding the Fourth Proportional to 21,281.94, 29,369.04 and 11,852.70

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Solution

The fourth proportional to 21,281.94, 29,369.04 and 11,852.70 is: 16,356.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,281.94 : 29,369.04 = 11,852.70 : x
  2. Step 2: Convert to fraction form
    21,281.94/29,369.04 = 11,852.70/x
  3. Step 3: Cross multiply
    21,281.94x = 29,369.04 × 11,852.70
  4. Step 4: Simplify right side
    21,281.94x = 348,102,420.41
  5. Step 5: Solve for x
    x = 348,102,420.41/21,281.94
  6. Step 6: Final answer
    x = 16,356.71

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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.