Home / 21,606.90-29,816.76-12,654.23

Finding the Fourth Proportional to 21,606.90, 29,816.76 and 12,654.23

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Solution

The fourth proportional to 21,606.90, 29,816.76 and 12,654.23 is: 17,462.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,606.90 : 29,816.76 = 12,654.23 : x
  2. Step 2: Convert to fraction form
    21,606.90/29,816.76 = 12,654.23/x
  3. Step 3: Cross multiply
    21,606.90x = 29,816.76 × 12,654.23
  4. Step 4: Simplify right side
    21,606.90x = 377,307,966.08
  5. Step 5: Solve for x
    x = 377,307,966.08/21,606.90
  6. Step 6: Final answer
    x = 17,462.38

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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.