Home / 31,434.89-43,361.12-19,337.40

Finding the Fourth Proportional to 31,434.89, 43,361.12 and 19,337.40

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Solution

The fourth proportional to 31,434.89, 43,361.12 and 19,337.40 is: 26,673.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,434.89 : 43,361.12 = 19,337.40 : x
  2. Step 2: Convert to fraction form
    31,434.89/43,361.12 = 19,337.40/x
  3. Step 3: Cross multiply
    31,434.89x = 43,361.12 × 19,337.40
  4. Step 4: Simplify right side
    31,434.89x = 838,491,370.23
  5. Step 5: Solve for x
    x = 838,491,370.23/31,434.89
  6. Step 6: Final answer
    x = 26,673.91

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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.