Home / 20,393.36-28,058.57-16,530.57

Finding the Fourth Proportional to 20,393.36, 28,058.57 and 16,530.57

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Solution

The fourth proportional to 20,393.36, 28,058.57 and 16,530.57 is: 22,743.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,393.36 : 28,058.57 = 16,530.57 : x
  2. Step 2: Convert to fraction form
    20,393.36/28,058.57 = 16,530.57/x
  3. Step 3: Cross multiply
    20,393.36x = 28,058.57 × 16,530.57
  4. Step 4: Simplify right side
    20,393.36x = 463,824,072.83
  5. Step 5: Solve for x
    x = 463,824,072.83/20,393.36
  6. Step 6: Final answer
    x = 22,743.88

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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.