Home / 21,389.94-29,487.24-14,664.92

Finding the Fourth Proportional to 21,389.94, 29,487.24 and 14,664.92

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Solution

The fourth proportional to 21,389.94, 29,487.24 and 14,664.92 is: 20,216.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,389.94 : 29,487.24 = 14,664.92 : x
  2. Step 2: Convert to fraction form
    21,389.94/29,487.24 = 14,664.92/x
  3. Step 3: Cross multiply
    21,389.94x = 29,487.24 × 14,664.92
  4. Step 4: Simplify right side
    21,389.94x = 432,427,868.18
  5. Step 5: Solve for x
    x = 432,427,868.18/21,389.94
  6. Step 6: Final answer
    x = 20,216.41

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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.