Home / 31,689.18-43,742.07-19,598.91

Finding the Fourth Proportional to 31,689.18, 43,742.07 and 19,598.91

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Solution

The fourth proportional to 31,689.18, 43,742.07 and 19,598.91 is: 27,053.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,689.18 : 43,742.07 = 19,598.91 : x
  2. Step 2: Convert to fraction form
    31,689.18/43,742.07 = 19,598.91/x
  3. Step 3: Cross multiply
    31,689.18x = 43,742.07 × 19,598.91
  4. Step 4: Simplify right side
    31,689.18x = 857,296,893.14
  5. Step 5: Solve for x
    x = 857,296,893.14/31,689.18
  6. Step 6: Final answer
    x = 27,053.30

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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.