Home / 31,528.61-43,529.75-19,608.17

Finding the Fourth Proportional to 31,528.61, 43,529.75 and 19,608.17

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Solution

The fourth proportional to 31,528.61, 43,529.75 and 19,608.17 is: 27,071.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,528.61 : 43,529.75 = 19,608.17 : x
  2. Step 2: Convert to fraction form
    31,528.61/43,529.75 = 19,608.17/x
  3. Step 3: Cross multiply
    31,528.61x = 43,529.75 × 19,608.17
  4. Step 4: Simplify right side
    31,528.61x = 853,538,640.02
  5. Step 5: Solve for x
    x = 853,538,640.02/31,528.61
  6. Step 6: Final answer
    x = 27,071.88

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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.