Home / 31,275.12-43,159.68-17,127.84

Finding the Fourth Proportional to 31,275.12, 43,159.68 and 17,127.84

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Solution

The fourth proportional to 31,275.12, 43,159.68 and 17,127.84 is: 23,636.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,275.12 : 43,159.68 = 17,127.84 : x
  2. Step 2: Convert to fraction form
    31,275.12/43,159.68 = 17,127.84/x
  3. Step 3: Cross multiply
    31,275.12x = 43,159.68 × 17,127.84
  4. Step 4: Simplify right side
    31,275.12x = 739,232,093.49
  5. Step 5: Solve for x
    x = 739,232,093.49/31,275.12
  6. Step 6: Final answer
    x = 23,636.43

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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.