Home / 32,600.82-45,016.71-20,685.30

Finding the Fourth Proportional to 32,600.82, 45,016.71 and 20,685.30

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Solution

The fourth proportional to 32,600.82, 45,016.71 and 20,685.30 is: 28,563.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,600.82 : 45,016.71 = 20,685.30 : x
  2. Step 2: Convert to fraction form
    32,600.82/45,016.71 = 20,685.30/x
  3. Step 3: Cross multiply
    32,600.82x = 45,016.71 × 20,685.30
  4. Step 4: Simplify right side
    32,600.82x = 931,184,151.36
  5. Step 5: Solve for x
    x = 931,184,151.36/32,600.82
  6. Step 6: Final answer
    x = 28,563.21

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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.