Home / 18,364.48-27,580.68-12,821.56

Finding the Fourth Proportional to 18,364.48, 27,580.68 and 12,821.56

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Solution

The fourth proportional to 18,364.48, 27,580.68 and 12,821.56 is: 19,256.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,364.48 : 27,580.68 = 12,821.56 : x
  2. Step 2: Convert to fraction form
    18,364.48/27,580.68 = 12,821.56/x
  3. Step 3: Cross multiply
    18,364.48x = 27,580.68 × 12,821.56
  4. Step 4: Simplify right side
    18,364.48x = 353,627,343.46
  5. Step 5: Solve for x
    x = 353,627,343.46/18,364.48
  6. Step 6: Final answer
    x = 19,256.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.