Home / 21,692.43-29,937.02-12,133.20

Finding the Fourth Proportional to 21,692.43, 29,937.02 and 12,133.20

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Solution

The fourth proportional to 21,692.43, 29,937.02 and 12,133.20 is: 16,744.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,692.43 : 29,937.02 = 12,133.20 : x
  2. Step 2: Convert to fraction form
    21,692.43/29,937.02 = 12,133.20/x
  3. Step 3: Cross multiply
    21,692.43x = 29,937.02 × 12,133.20
  4. Step 4: Simplify right side
    21,692.43x = 363,232,009.03
  5. Step 5: Solve for x
    x = 363,232,009.03/21,692.43
  6. Step 6: Final answer
    x = 16,744.64

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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.