Home / 31,868.08-43,969.04-19,113.28

Finding the Fourth Proportional to 31,868.08, 43,969.04 and 19,113.28

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Solution

The fourth proportional to 31,868.08, 43,969.04 and 19,113.28 is: 26,370.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,868.08 : 43,969.04 = 19,113.28 : x
  2. Step 2: Convert to fraction form
    31,868.08/43,969.04 = 19,113.28/x
  3. Step 3: Cross multiply
    31,868.08x = 43,969.04 × 19,113.28
  4. Step 4: Simplify right side
    31,868.08x = 840,392,572.85
  5. Step 5: Solve for x
    x = 840,392,572.85/31,868.08
  6. Step 6: Final answer
    x = 26,370.98

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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.