Home / 36,210.40-54,339.90-21,403.60

Finding the Fourth Proportional to 36,210.40, 54,339.90 and 21,403.60

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Solution

The fourth proportional to 36,210.40, 54,339.90 and 21,403.60 is: 32,119.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,210.40 : 54,339.90 = 21,403.60 : x
  2. Step 2: Convert to fraction form
    36,210.40/54,339.90 = 21,403.60/x
  3. Step 3: Cross multiply
    36,210.40x = 54,339.90 × 21,403.60
  4. Step 4: Simplify right side
    36,210.40x = 1,163,069,483.64
  5. Step 5: Solve for x
    x = 1,163,069,483.64/36,210.40
  6. Step 6: Final answer
    x = 32,119.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.