Home / 21,768.08-32,666.64-13,982.48

Finding the Fourth Proportional to 21,768.08, 32,666.64 and 13,982.48

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Solution

The fourth proportional to 21,768.08, 32,666.64 and 13,982.48 is: 20,983.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,768.08 : 32,666.64 = 13,982.48 : x
  2. Step 2: Convert to fraction form
    21,768.08/32,666.64 = 13,982.48/x
  3. Step 3: Cross multiply
    21,768.08x = 32,666.64 × 13,982.48
  4. Step 4: Simplify right side
    21,768.08x = 456,760,640.47
  5. Step 5: Solve for x
    x = 456,760,640.47/21,768.08
  6. Step 6: Final answer
    x = 20,983.05

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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.