Home / 21,692.36-32,543.55-9,212.79

Finding the Fourth Proportional to 21,692.36, 32,543.55 and 9,212.79

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Solution

The fourth proportional to 21,692.36, 32,543.55 and 9,212.79 is: 13,821.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,692.36 : 32,543.55 = 9,212.79 : x
  2. Step 2: Convert to fraction form
    21,692.36/32,543.55 = 9,212.79/x
  3. Step 3: Cross multiply
    21,692.36x = 32,543.55 × 9,212.79
  4. Step 4: Simplify right side
    21,692.36x = 299,816,892.00
  5. Step 5: Solve for x
    x = 299,816,892.00/21,692.36
  6. Step 6: Final answer
    x = 13,821.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.