Home / 16,720.43-23,081.61-10,678.58

Finding the Fourth Proportional to 16,720.43, 23,081.61 and 10,678.58

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Solution

The fourth proportional to 16,720.43, 23,081.61 and 10,678.58 is: 14,741.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,720.43 : 23,081.61 = 10,678.58 : x
  2. Step 2: Convert to fraction form
    16,720.43/23,081.61 = 10,678.58/x
  3. Step 3: Cross multiply
    16,720.43x = 23,081.61 × 10,678.58
  4. Step 4: Simplify right side
    16,720.43x = 246,478,876.62
  5. Step 5: Solve for x
    x = 246,478,876.62/16,720.43
  6. Step 6: Final answer
    x = 14,741.18

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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.