Home / 31,033.88-42,869.96-29,881.71

Finding the Fourth Proportional to 31,033.88, 42,869.96 and 29,881.71

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Solution

The fourth proportional to 31,033.88, 42,869.96 and 29,881.71 is: 41,278.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,033.88 : 42,869.96 = 29,881.71 : x
  2. Step 2: Convert to fraction form
    31,033.88/42,869.96 = 29,881.71/x
  3. Step 3: Cross multiply
    31,033.88x = 42,869.96 × 29,881.71
  4. Step 4: Simplify right side
    31,033.88x = 1,281,027,675.08
  5. Step 5: Solve for x
    x = 1,281,027,675.08/31,033.88
  6. Step 6: Final answer
    x = 41,278.35

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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.