Home / 21,877.99-30,191.37-12,446.53

Finding the Fourth Proportional to 21,877.99, 30,191.37 and 12,446.53

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Solution

The fourth proportional to 21,877.99, 30,191.37 and 12,446.53 is: 17,176.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,877.99 : 30,191.37 = 12,446.53 : x
  2. Step 2: Convert to fraction form
    21,877.99/30,191.37 = 12,446.53/x
  3. Step 3: Cross multiply
    21,877.99x = 30,191.37 × 12,446.53
  4. Step 4: Simplify right side
    21,877.99x = 375,777,792.45
  5. Step 5: Solve for x
    x = 375,777,792.45/21,877.99
  6. Step 6: Final answer
    x = 17,176.07

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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.