Home / 23,420.49-32,320.53-12,809.89

Finding the Fourth Proportional to 23,420.49, 32,320.53 and 12,809.89

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Solution

The fourth proportional to 23,420.49, 32,320.53 and 12,809.89 is: 17,677.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,420.49 : 32,320.53 = 12,809.89 : x
  2. Step 2: Convert to fraction form
    23,420.49/32,320.53 = 12,809.89/x
  3. Step 3: Cross multiply
    23,420.49x = 32,320.53 × 12,809.89
  4. Step 4: Simplify right side
    23,420.49x = 414,022,369.99
  5. Step 5: Solve for x
    x = 414,022,369.99/23,420.49
  6. Step 6: Final answer
    x = 17,677.79

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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.