Home / 21,455.35-32,131.08-10,897.61

Finding the Fourth Proportional to 21,455.35, 32,131.08 and 10,897.61

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Solution

The fourth proportional to 21,455.35, 32,131.08 and 10,897.61 is: 16,320.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,455.35 : 32,131.08 = 10,897.61 : x
  2. Step 2: Convert to fraction form
    21,455.35/32,131.08 = 10,897.61/x
  3. Step 3: Cross multiply
    21,455.35x = 32,131.08 × 10,897.61
  4. Step 4: Simplify right side
    21,455.35x = 350,151,818.06
  5. Step 5: Solve for x
    x = 350,151,818.06/21,455.35
  6. Step 6: Final answer
    x = 16,320.03

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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.