Home / 31,271.32-43,109.92-19,327.84

Finding the Fourth Proportional to 31,271.32, 43,109.92 and 19,327.84

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Solution

The fourth proportional to 31,271.32, 43,109.92 and 19,327.84 is: 26,644.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,271.32 : 43,109.92 = 19,327.84 : x
  2. Step 2: Convert to fraction form
    31,271.32/43,109.92 = 19,327.84/x
  3. Step 3: Cross multiply
    31,271.32x = 43,109.92 × 19,327.84
  4. Step 4: Simplify right side
    31,271.32x = 833,221,636.17
  5. Step 5: Solve for x
    x = 833,221,636.17/31,271.32
  6. Step 6: Final answer
    x = 26,644.91

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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.