Home / 31,333.47-43,215.75-19,403.43

Finding the Fourth Proportional to 31,333.47, 43,215.75 and 19,403.43

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Solution

The fourth proportional to 31,333.47, 43,215.75 and 19,403.43 is: 26,761.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,333.47 : 43,215.75 = 19,403.43 : x
  2. Step 2: Convert to fraction form
    31,333.47/43,215.75 = 19,403.43/x
  3. Step 3: Cross multiply
    31,333.47x = 43,215.75 × 19,403.43
  4. Step 4: Simplify right side
    31,333.47x = 838,533,780.02
  5. Step 5: Solve for x
    x = 838,533,780.02/31,333.47
  6. Step 6: Final answer
    x = 26,761.60

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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.