Home / 21,518.25-29,692.53-12,559.26

Finding the Fourth Proportional to 21,518.25, 29,692.53 and 12,559.26

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Solution

The fourth proportional to 21,518.25, 29,692.53 and 12,559.26 is: 17,330.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,518.25 : 29,692.53 = 12,559.26 : x
  2. Step 2: Convert to fraction form
    21,518.25/29,692.53 = 12,559.26/x
  3. Step 3: Cross multiply
    21,518.25x = 29,692.53 × 12,559.26
  4. Step 4: Simplify right side
    21,518.25x = 372,916,204.33
  5. Step 5: Solve for x
    x = 372,916,204.33/21,518.25
  6. Step 6: Final answer
    x = 17,330.23

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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.