Home / 32,855.91-45,325.35-21,520.50

Finding the Fourth Proportional to 32,855.91, 45,325.35 and 21,520.50

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Solution

The fourth proportional to 32,855.91, 45,325.35 and 21,520.50 is: 29,687.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,855.91 : 45,325.35 = 21,520.50 : x
  2. Step 2: Convert to fraction form
    32,855.91/45,325.35 = 21,520.50/x
  3. Step 3: Cross multiply
    32,855.91x = 45,325.35 × 21,520.50
  4. Step 4: Simplify right side
    32,855.91x = 975,424,194.68
  5. Step 5: Solve for x
    x = 975,424,194.68/32,855.91
  6. Step 6: Final answer
    x = 29,687.94

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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.