Home / 23,491.83-32,420.21-15,520.08

Finding the Fourth Proportional to 23,491.83, 32,420.21 and 15,520.08

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Solution

The fourth proportional to 23,491.83, 32,420.21 and 15,520.08 is: 21,418.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,491.83 : 32,420.21 = 15,520.08 : x
  2. Step 2: Convert to fraction form
    23,491.83/32,420.21 = 15,520.08/x
  3. Step 3: Cross multiply
    23,491.83x = 32,420.21 × 15,520.08
  4. Step 4: Simplify right side
    23,491.83x = 503,164,291.62
  5. Step 5: Solve for x
    x = 503,164,291.62/23,491.83
  6. Step 6: Final answer
    x = 21,418.69

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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.