Home / 21,348.12-32,021.49-9,661.34

Finding the Fourth Proportional to 21,348.12, 32,021.49 and 9,661.34

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Solution

The fourth proportional to 21,348.12, 32,021.49 and 9,661.34 is: 14,491.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,348.12 : 32,021.49 = 9,661.34 : x
  2. Step 2: Convert to fraction form
    21,348.12/32,021.49 = 9,661.34/x
  3. Step 3: Cross multiply
    21,348.12x = 32,021.49 × 9,661.34
  4. Step 4: Simplify right side
    21,348.12x = 309,370,618.48
  5. Step 5: Solve for x
    x = 309,370,618.48/21,348.12
  6. Step 6: Final answer
    x = 14,491.70

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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.