Home / 31,395.60-43,346.88-19,476.72

Finding the Fourth Proportional to 31,395.60, 43,346.88 and 19,476.72

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Solution

The fourth proportional to 31,395.60, 43,346.88 and 19,476.72 is: 26,890.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,395.60 : 43,346.88 = 19,476.72 : x
  2. Step 2: Convert to fraction form
    31,395.60/43,346.88 = 19,476.72/x
  3. Step 3: Cross multiply
    31,395.60x = 43,346.88 × 19,476.72
  4. Step 4: Simplify right side
    31,395.60x = 844,255,044.63
  5. Step 5: Solve for x
    x = 844,255,044.63/31,395.60
  6. Step 6: Final answer
    x = 26,890.87

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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.