Home / 38,380.12-52,989.06-31,323.40

Finding the Fourth Proportional to 38,380.12, 52,989.06 and 31,323.40

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Solution

The fourth proportional to 38,380.12, 52,989.06 and 31,323.40 is: 43,246.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,380.12 : 52,989.06 = 31,323.40 : x
  2. Step 2: Convert to fraction form
    38,380.12/52,989.06 = 31,323.40/x
  3. Step 3: Cross multiply
    38,380.12x = 52,989.06 × 31,323.40
  4. Step 4: Simplify right side
    38,380.12x = 1,659,797,522.00
  5. Step 5: Solve for x
    x = 1,659,797,522.00/38,380.12
  6. Step 6: Final answer
    x = 43,246.28

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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.