Home / 31,725.60-47,530.80-25,850.40

Finding the Fourth Proportional to 31,725.60, 47,530.80 and 25,850.40

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Solution

The fourth proportional to 31,725.60, 47,530.80 and 25,850.40 is: 38,728.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,725.60 : 47,530.80 = 25,850.40 : x
  2. Step 2: Convert to fraction form
    31,725.60/47,530.80 = 25,850.40/x
  3. Step 3: Cross multiply
    31,725.60x = 47,530.80 × 25,850.40
  4. Step 4: Simplify right side
    31,725.60x = 1,228,690,192.32
  5. Step 5: Solve for x
    x = 1,228,690,192.32/31,725.60
  6. Step 6: Final answer
    x = 38,728.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.