Home / 31,307.83-43,209.23-19,375.01

Finding the Fourth Proportional to 31,307.83, 43,209.23 and 19,375.01

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Solution

The fourth proportional to 31,307.83, 43,209.23 and 19,375.01 is: 26,740.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,307.83 : 43,209.23 = 19,375.01 : x
  2. Step 2: Convert to fraction form
    31,307.83/43,209.23 = 19,375.01/x
  3. Step 3: Cross multiply
    31,307.83x = 43,209.23 × 19,375.01
  4. Step 4: Simplify right side
    31,307.83x = 837,179,221.44
  5. Step 5: Solve for x
    x = 837,179,221.44/31,307.83
  6. Step 6: Final answer
    x = 26,740.25

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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.