Home / 23,491.80-32,418.92-13,421.56

Finding the Fourth Proportional to 23,491.80, 32,418.92 and 13,421.56

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Solution

The fourth proportional to 23,491.80, 32,418.92 and 13,421.56 is: 18,521.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,491.80 : 32,418.92 = 13,421.56 : x
  2. Step 2: Convert to fraction form
    23,491.80/32,418.92 = 13,421.56/x
  3. Step 3: Cross multiply
    23,491.80x = 32,418.92 × 13,421.56
  4. Step 4: Simplify right side
    23,491.80x = 435,112,479.92
  5. Step 5: Solve for x
    x = 435,112,479.92/23,491.80
  6. Step 6: Final answer
    x = 18,521.89

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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.