Home / 31,581.78-43,582.58-17,434.32

Finding the Fourth Proportional to 31,581.78, 43,582.58 and 17,434.32

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Solution

The fourth proportional to 31,581.78, 43,582.58 and 17,434.32 is: 24,059.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,581.78 : 43,582.58 = 17,434.32 : x
  2. Step 2: Convert to fraction form
    31,581.78/43,582.58 = 17,434.32/x
  3. Step 3: Cross multiply
    31,581.78x = 43,582.58 × 17,434.32
  4. Step 4: Simplify right side
    31,581.78x = 759,832,558.97
  5. Step 5: Solve for x
    x = 759,832,558.97/31,581.78
  6. Step 6: Final answer
    x = 24,059.21

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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.