Home / 19,664.30-29,491.29-13,423.16

Finding the Fourth Proportional to 19,664.30, 29,491.29 and 13,423.16

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Solution

The fourth proportional to 19,664.30, 29,491.29 and 13,423.16 is: 20,131.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,664.30 : 29,491.29 = 13,423.16 : x
  2. Step 2: Convert to fraction form
    19,664.30/29,491.29 = 13,423.16/x
  3. Step 3: Cross multiply
    19,664.30x = 29,491.29 × 13,423.16
  4. Step 4: Simplify right side
    19,664.30x = 395,866,304.28
  5. Step 5: Solve for x
    x = 395,866,304.28/19,664.30
  6. Step 6: Final answer
    x = 20,131.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.