Home / 31,212.64-43,070.36-17,782.84

Finding the Fourth Proportional to 31,212.64, 43,070.36 and 17,782.84

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Solution

The fourth proportional to 31,212.64, 43,070.36 and 17,782.84 is: 24,538.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,212.64 : 43,070.36 = 17,782.84 : x
  2. Step 2: Convert to fraction form
    31,212.64/43,070.36 = 17,782.84/x
  3. Step 3: Cross multiply
    31,212.64x = 43,070.36 × 17,782.84
  4. Step 4: Simplify right side
    31,212.64x = 765,913,320.62
  5. Step 5: Solve for x
    x = 765,913,320.62/31,212.64
  6. Step 6: Final answer
    x = 24,538.56

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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.