Home / 39,370.80-59,056.20-20,938.80

Finding the Fourth Proportional to 39,370.80, 59,056.20 and 20,938.80

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Solution

The fourth proportional to 39,370.80, 59,056.20 and 20,938.80 is: 31,408.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,370.80 : 59,056.20 = 20,938.80 : x
  2. Step 2: Convert to fraction form
    39,370.80/59,056.20 = 20,938.80/x
  3. Step 3: Cross multiply
    39,370.80x = 59,056.20 × 20,938.80
  4. Step 4: Simplify right side
    39,370.80x = 1,236,565,960.56
  5. Step 5: Solve for x
    x = 1,236,565,960.56/39,370.80
  6. Step 6: Final answer
    x = 31,408.20

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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.