Home / 21,692.21-32,531.76-9,212.13

Finding the Fourth Proportional to 21,692.21, 32,531.76 and 9,212.13

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Solution

The fourth proportional to 21,692.21, 32,531.76 and 9,212.13 is: 13,815.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,692.21 : 32,531.76 = 9,212.13 : x
  2. Step 2: Convert to fraction form
    21,692.21/32,531.76 = 9,212.13/x
  3. Step 3: Cross multiply
    21,692.21x = 32,531.76 × 9,212.13
  4. Step 4: Simplify right side
    21,692.21x = 299,686,802.25
  5. Step 5: Solve for x
    x = 299,686,802.25/21,692.21
  6. Step 6: Final answer
    x = 13,815.41

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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.