Home / 21,044.42-29,044.50-13,089.20

Finding the Fourth Proportional to 21,044.42, 29,044.50 and 13,089.20

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Solution

The fourth proportional to 21,044.42, 29,044.50 and 13,089.20 is: 18,065.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,044.42 : 29,044.50 = 13,089.20 : x
  2. Step 2: Convert to fraction form
    21,044.42/29,044.50 = 13,089.20/x
  3. Step 3: Cross multiply
    21,044.42x = 29,044.50 × 13,089.20
  4. Step 4: Simplify right side
    21,044.42x = 380,169,269.40
  5. Step 5: Solve for x
    x = 380,169,269.40/21,044.42
  6. Step 6: Final answer
    x = 18,065.09

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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.