Home / 21,044.22-29,020.76-14,160.90

Finding the Fourth Proportional to 21,044.22, 29,020.76 and 14,160.90

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Solution

The fourth proportional to 21,044.22, 29,020.76 and 14,160.90 is: 19,528.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,044.22 : 29,020.76 = 14,160.90 : x
  2. Step 2: Convert to fraction form
    21,044.22/29,020.76 = 14,160.90/x
  3. Step 3: Cross multiply
    21,044.22x = 29,020.76 × 14,160.90
  4. Step 4: Simplify right side
    21,044.22x = 410,960,009.48
  5. Step 5: Solve for x
    x = 410,960,009.48/21,044.22
  6. Step 6: Final answer
    x = 19,528.40

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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.