Home / 31,306.70-43,207.68-19,373.88

Finding the Fourth Proportional to 31,306.70, 43,207.68 and 19,373.88

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Solution

The fourth proportional to 31,306.70, 43,207.68 and 19,373.88 is: 26,738.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,306.70 : 43,207.68 = 19,373.88 : x
  2. Step 2: Convert to fraction form
    31,306.70/43,207.68 = 19,373.88/x
  3. Step 3: Cross multiply
    31,306.70x = 43,207.68 × 19,373.88
  4. Step 4: Simplify right side
    31,306.70x = 837,100,533.10
  5. Step 5: Solve for x
    x = 837,100,533.10/31,306.70
  6. Step 6: Final answer
    x = 26,738.70

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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.