Home / 21,197.65-29,252.87-13,244.49

Finding the Fourth Proportional to 21,197.65, 29,252.87 and 13,244.49

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Solution

The fourth proportional to 21,197.65, 29,252.87 and 13,244.49 is: 18,277.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,197.65 : 29,252.87 = 13,244.49 : x
  2. Step 2: Convert to fraction form
    21,197.65/29,252.87 = 13,244.49/x
  3. Step 3: Cross multiply
    21,197.65x = 29,252.87 × 13,244.49
  4. Step 4: Simplify right side
    21,197.65x = 387,439,271.05
  5. Step 5: Solve for x
    x = 387,439,271.05/21,197.65
  6. Step 6: Final answer
    x = 18,277.46

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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.