Home / 32,905.62-45,397.80-20,974.32

Finding the Fourth Proportional to 32,905.62, 45,397.80 and 20,974.32

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Solution

The fourth proportional to 32,905.62, 45,397.80 and 20,974.32 is: 28,936.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,905.62 : 45,397.80 = 20,974.32 : x
  2. Step 2: Convert to fraction form
    32,905.62/45,397.80 = 20,974.32/x
  3. Step 3: Cross multiply
    32,905.62x = 45,397.80 × 20,974.32
  4. Step 4: Simplify right side
    32,905.62x = 952,187,984.50
  5. Step 5: Solve for x
    x = 952,187,984.50/32,905.62
  6. Step 6: Final answer
    x = 28,936.94

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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.