Home / 36,315.80-54,327.90-31,439.60

Finding the Fourth Proportional to 36,315.80, 54,327.90 and 31,439.60

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Solution

The fourth proportional to 36,315.80, 54,327.90 and 31,439.60 is: 47,033.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,315.80 : 54,327.90 = 31,439.60 : x
  2. Step 2: Convert to fraction form
    36,315.80/54,327.90 = 31,439.60/x
  3. Step 3: Cross multiply
    36,315.80x = 54,327.90 × 31,439.60
  4. Step 4: Simplify right side
    36,315.80x = 1,708,047,444.84
  5. Step 5: Solve for x
    x = 1,708,047,444.84/36,315.80
  6. Step 6: Final answer
    x = 47,033.18

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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.