Home / 21,506.10-29,673.23-12,548.49

Finding the Fourth Proportional to 21,506.10, 29,673.23 and 12,548.49

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Solution

The fourth proportional to 21,506.10, 29,673.23 and 12,548.49 is: 17,313.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,506.10 : 29,673.23 = 12,548.49 : x
  2. Step 2: Convert to fraction form
    21,506.10/29,673.23 = 12,548.49/x
  3. Step 3: Cross multiply
    21,506.10x = 29,673.23 × 12,548.49
  4. Step 4: Simplify right side
    21,506.10x = 372,354,167.18
  5. Step 5: Solve for x
    x = 372,354,167.18/21,506.10
  6. Step 6: Final answer
    x = 17,313.89

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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.