Home / 21,507.23-29,674.78-12,549.62

Finding the Fourth Proportional to 21,507.23, 29,674.78 and 12,549.62

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Solution

The fourth proportional to 21,507.23, 29,674.78 and 12,549.62 is: 17,315.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,507.23 : 29,674.78 = 12,549.62 : x
  2. Step 2: Convert to fraction form
    21,507.23/29,674.78 = 12,549.62/x
  3. Step 3: Cross multiply
    21,507.23x = 29,674.78 × 12,549.62
  4. Step 4: Simplify right side
    21,507.23x = 372,407,032.84
  5. Step 5: Solve for x
    x = 372,407,032.84/21,507.23
  6. Step 6: Final answer
    x = 17,315.44

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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.