Home / 31,310.19-43,209.83-18,570.91

Finding the Fourth Proportional to 31,310.19, 43,209.83 and 18,570.91

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Solution

The fourth proportional to 31,310.19, 43,209.83 and 18,570.91 is: 25,628.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,310.19 : 43,209.83 = 18,570.91 : x
  2. Step 2: Convert to fraction form
    31,310.19/43,209.83 = 18,570.91/x
  3. Step 3: Cross multiply
    31,310.19x = 43,209.83 × 18,570.91
  4. Step 4: Simplify right side
    31,310.19x = 802,445,864.05
  5. Step 5: Solve for x
    x = 802,445,864.05/31,310.19
  6. Step 6: Final answer
    x = 25,628.90

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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.