Home / 21,771.33-30,053.62-14,707.32

Finding the Fourth Proportional to 21,771.33, 30,053.62 and 14,707.32

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Solution

The fourth proportional to 21,771.33, 30,053.62 and 14,707.32 is: 20,302.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,771.33 : 30,053.62 = 14,707.32 : x
  2. Step 2: Convert to fraction form
    21,771.33/30,053.62 = 14,707.32/x
  3. Step 3: Cross multiply
    21,771.33x = 30,053.62 × 14,707.32
  4. Step 4: Simplify right side
    21,771.33x = 442,008,029.45
  5. Step 5: Solve for x
    x = 442,008,029.45/21,771.33
  6. Step 6: Final answer
    x = 20,302.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.