Home / 31,714.31-43,765.75-19,139.06

Finding the Fourth Proportional to 31,714.31, 43,765.75 and 19,139.06

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Solution

The fourth proportional to 31,714.31, 43,765.75 and 19,139.06 is: 26,411.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,714.31 : 43,765.75 = 19,139.06 : x
  2. Step 2: Convert to fraction form
    31,714.31/43,765.75 = 19,139.06/x
  3. Step 3: Cross multiply
    31,714.31x = 43,765.75 × 19,139.06
  4. Step 4: Simplify right side
    31,714.31x = 837,635,448.53
  5. Step 5: Solve for x
    x = 837,635,448.53/31,714.31
  6. Step 6: Final answer
    x = 26,411.91

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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.