Home / 39,131.60-58,735.80-19,432.40

Finding the Fourth Proportional to 39,131.60, 58,735.80 and 19,432.40

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Solution

The fourth proportional to 39,131.60, 58,735.80 and 19,432.40 is: 29,167.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,131.60 : 58,735.80 = 19,432.40 : x
  2. Step 2: Convert to fraction form
    39,131.60/58,735.80 = 19,432.40/x
  3. Step 3: Cross multiply
    39,131.60x = 58,735.80 × 19,432.40
  4. Step 4: Simplify right side
    39,131.60x = 1,141,377,559.92
  5. Step 5: Solve for x
    x = 1,141,377,559.92/39,131.60
  6. Step 6: Final answer
    x = 29,167.67

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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.