Home / 32,633.12-45,055.04-20,551.20

Finding the Fourth Proportional to 32,633.12, 45,055.04 and 20,551.20

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Solution

The fourth proportional to 32,633.12, 45,055.04 and 20,551.20 is: 28,374.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,633.12 : 45,055.04 = 20,551.20 : x
  2. Step 2: Convert to fraction form
    32,633.12/45,055.04 = 20,551.20/x
  3. Step 3: Cross multiply
    32,633.12x = 45,055.04 × 20,551.20
  4. Step 4: Simplify right side
    32,633.12x = 925,935,138.05
  5. Step 5: Solve for x
    x = 925,935,138.05/32,633.12
  6. Step 6: Final answer
    x = 28,374.09

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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.