Home / 20,574.58-28,391.56-11,623

Finding the Fourth Proportional to 20,574.58, 28,391.56 and 11,623

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Solution

The fourth proportional to 20,574.58, 28,391.56 and 11,623 is: 16,038.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,574.58 : 28,391.56 = 11,623 : x
  2. Step 2: Convert to fraction form
    20,574.58/28,391.56 = 11,623/x
  3. Step 3: Cross multiply
    20,574.58x = 28,391.56 × 11,623
  4. Step 4: Simplify right side
    20,574.58x = 329,995,101.88
  5. Step 5: Solve for x
    x = 329,995,101.88/20,574.58
  6. Step 6: Final answer
    x = 16,038.97

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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.