Home / 31,489.08-43,475.84-19,570.20

Finding the Fourth Proportional to 31,489.08, 43,475.84 and 19,570.20

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Solution

The fourth proportional to 31,489.08, 43,475.84 and 19,570.20 is: 27,019.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,489.08 : 43,475.84 = 19,570.20 : x
  2. Step 2: Convert to fraction form
    31,489.08/43,475.84 = 19,570.20/x
  3. Step 3: Cross multiply
    31,489.08x = 43,475.84 × 19,570.20
  4. Step 4: Simplify right side
    31,489.08x = 850,830,883.97
  5. Step 5: Solve for x
    x = 850,830,883.97/31,489.08
  6. Step 6: Final answer
    x = 27,019.87

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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.