Home / 21,743.10-32,609.61-10,638.63

Finding the Fourth Proportional to 21,743.10, 32,609.61 and 10,638.63

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Solution

The fourth proportional to 21,743.10, 32,609.61 and 10,638.63 is: 15,955.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,743.10 : 32,609.61 = 10,638.63 : x
  2. Step 2: Convert to fraction form
    21,743.10/32,609.61 = 10,638.63/x
  3. Step 3: Cross multiply
    21,743.10x = 32,609.61 × 10,638.63
  4. Step 4: Simplify right side
    21,743.10x = 346,921,575.23
  5. Step 5: Solve for x
    x = 346,921,575.23/21,743.10
  6. Step 6: Final answer
    x = 15,955.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.