Home / 32,821.90-45,289.34-18,479.64

Finding the Fourth Proportional to 32,821.90, 45,289.34 and 18,479.64

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Solution

The fourth proportional to 32,821.90, 45,289.34 and 18,479.64 is: 25,499.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,821.90 : 45,289.34 = 18,479.64 : x
  2. Step 2: Convert to fraction form
    32,821.90/45,289.34 = 18,479.64/x
  3. Step 3: Cross multiply
    32,821.90x = 45,289.34 × 18,479.64
  4. Step 4: Simplify right side
    32,821.90x = 836,930,699.04
  5. Step 5: Solve for x
    x = 836,930,699.04/32,821.90
  6. Step 6: Final answer
    x = 25,499.15

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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.