Home / 21,988.02-32,998.23-13,680.26

Finding the Fourth Proportional to 21,988.02, 32,998.23 and 13,680.26

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Solution

The fourth proportional to 21,988.02, 32,998.23 and 13,680.26 is: 20,530.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,988.02 : 32,998.23 = 13,680.26 : x
  2. Step 2: Convert to fraction form
    21,988.02/32,998.23 = 13,680.26/x
  3. Step 3: Cross multiply
    21,988.02x = 32,998.23 × 13,680.26
  4. Step 4: Simplify right side
    21,988.02x = 451,424,200.95
  5. Step 5: Solve for x
    x = 451,424,200.95/21,988.02
  6. Step 6: Final answer
    x = 20,530.46

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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.