Home / 31,799.10-43,873.86-19,874.55

Finding the Fourth Proportional to 31,799.10, 43,873.86 and 19,874.55

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Solution

The fourth proportional to 31,799.10, 43,873.86 and 19,874.55 is: 27,421.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,799.10 : 43,873.86 = 19,874.55 : x
  2. Step 2: Convert to fraction form
    31,799.10/43,873.86 = 19,874.55/x
  3. Step 3: Cross multiply
    31,799.10x = 43,873.86 × 19,874.55
  4. Step 4: Simplify right side
    31,799.10x = 871,973,224.26
  5. Step 5: Solve for x
    x = 871,973,224.26/31,799.10
  6. Step 6: Final answer
    x = 27,421.32

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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.