Home / 22,478.13-33,708.42-8,430.48

Finding the Fourth Proportional to 22,478.13, 33,708.42 and 8,430.48

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Solution

The fourth proportional to 22,478.13, 33,708.42 and 8,430.48 is: 12,642.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,478.13 : 33,708.42 = 8,430.48 : x
  2. Step 2: Convert to fraction form
    22,478.13/33,708.42 = 8,430.48/x
  3. Step 3: Cross multiply
    22,478.13x = 33,708.42 × 8,430.48
  4. Step 4: Simplify right side
    22,478.13x = 284,178,160.64
  5. Step 5: Solve for x
    x = 284,178,160.64/22,478.13
  6. Step 6: Final answer
    x = 12,642.43

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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.