Home / 21,644.51-32,440.28-12,292.38

Finding the Fourth Proportional to 21,644.51, 32,440.28 and 12,292.38

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Solution

The fourth proportional to 21,644.51, 32,440.28 and 12,292.38 is: 18,423.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,644.51 : 32,440.28 = 12,292.38 : x
  2. Step 2: Convert to fraction form
    21,644.51/32,440.28 = 12,292.38/x
  3. Step 3: Cross multiply
    21,644.51x = 32,440.28 × 12,292.38
  4. Step 4: Simplify right side
    21,644.51x = 398,768,187.60
  5. Step 5: Solve for x
    x = 398,768,187.60/21,644.51
  6. Step 6: Final answer
    x = 18,423.53

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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.