Home / 23,488.21-32,394.90-20,649.55

Finding the Fourth Proportional to 23,488.21, 32,394.90 and 20,649.55

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Solution

The fourth proportional to 23,488.21, 32,394.90 and 20,649.55 is: 28,479.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,488.21 : 32,394.90 = 20,649.55 : x
  2. Step 2: Convert to fraction form
    23,488.21/32,394.90 = 20,649.55/x
  3. Step 3: Cross multiply
    23,488.21x = 32,394.90 × 20,649.55
  4. Step 4: Simplify right side
    23,488.21x = 668,940,107.30
  5. Step 5: Solve for x
    x = 668,940,107.30/23,488.21
  6. Step 6: Final answer
    x = 28,479.82

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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.