Home / 21,602.13-32,415.95-9,121.33

Finding the Fourth Proportional to 21,602.13, 32,415.95 and 9,121.33

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Solution

The fourth proportional to 21,602.13, 32,415.95 and 9,121.33 is: 13,687.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,602.13 : 32,415.95 = 9,121.33 : x
  2. Step 2: Convert to fraction form
    21,602.13/32,415.95 = 9,121.33/x
  3. Step 3: Cross multiply
    21,602.13x = 32,415.95 × 9,121.33
  4. Step 4: Simplify right side
    21,602.13x = 295,676,577.21
  5. Step 5: Solve for x
    x = 295,676,577.21/21,602.13
  6. Step 6: Final answer
    x = 13,687.38

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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.