Home / 20,570.18-28,366.97-17,383.55

Finding the Fourth Proportional to 20,570.18, 28,366.97 and 17,383.55

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Solution

The fourth proportional to 20,570.18, 28,366.97 and 17,383.55 is: 23,972.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,570.18 : 28,366.97 = 17,383.55 : x
  2. Step 2: Convert to fraction form
    20,570.18/28,366.97 = 17,383.55/x
  3. Step 3: Cross multiply
    20,570.18x = 28,366.97 × 17,383.55
  4. Step 4: Simplify right side
    20,570.18x = 493,118,412.59
  5. Step 5: Solve for x
    x = 493,118,412.59/20,570.18
  6. Step 6: Final answer
    x = 23,972.49

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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.