Home / 23,420.09-32,320.49-12,809.72

Finding the Fourth Proportional to 23,420.09, 32,320.49 and 12,809.72

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Solution

The fourth proportional to 23,420.09, 32,320.49 and 12,809.72 is: 17,677.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,420.09 : 32,320.49 = 12,809.72 : x
  2. Step 2: Convert to fraction form
    23,420.09/32,320.49 = 12,809.72/x
  3. Step 3: Cross multiply
    23,420.09x = 32,320.49 × 12,809.72
  4. Step 4: Simplify right side
    23,420.09x = 414,016,353.01
  5. Step 5: Solve for x
    x = 414,016,353.01/23,420.09
  6. Step 6: Final answer
    x = 17,677.83

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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.