Home / 31,056.26-42,835.88-19,126.17

Finding the Fourth Proportional to 31,056.26, 42,835.88 and 19,126.17

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Solution

The fourth proportional to 31,056.26, 42,835.88 and 19,126.17 is: 26,380.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,056.26 : 42,835.88 = 19,126.17 : x
  2. Step 2: Convert to fraction form
    31,056.26/42,835.88 = 19,126.17/x
  3. Step 3: Cross multiply
    31,056.26x = 42,835.88 × 19,126.17
  4. Step 4: Simplify right side
    31,056.26x = 819,286,227.35
  5. Step 5: Solve for x
    x = 819,286,227.35/31,056.26
  6. Step 6: Final answer
    x = 26,380.72

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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.