Home / 32,790.24-45,299.88-21,486.60

Finding the Fourth Proportional to 32,790.24, 45,299.88 and 21,486.60

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Solution

The fourth proportional to 32,790.24, 45,299.88 and 21,486.60 is: 29,683.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,790.24 : 45,299.88 = 21,486.60 : x
  2. Step 2: Convert to fraction form
    32,790.24/45,299.88 = 21,486.60/x
  3. Step 3: Cross multiply
    32,790.24x = 45,299.88 × 21,486.60
  4. Step 4: Simplify right side
    32,790.24x = 973,340,401.61
  5. Step 5: Solve for x
    x = 973,340,401.61/32,790.24
  6. Step 6: Final answer
    x = 29,683.84

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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.