Home / 39,586.80-59,415.60-20,879.04

Finding the Fourth Proportional to 39,586.80, 59,415.60 and 20,879.04

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Solution

The fourth proportional to 39,586.80, 59,415.60 and 20,879.04 is: 31,337.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,586.80 : 59,415.60 = 20,879.04 : x
  2. Step 2: Convert to fraction form
    39,586.80/59,415.60 = 20,879.04/x
  3. Step 3: Cross multiply
    39,586.80x = 59,415.60 × 20,879.04
  4. Step 4: Simplify right side
    39,586.80x = 1,240,540,689.02
  5. Step 5: Solve for x
    x = 1,240,540,689.02/39,586.80
  6. Step 6: Final answer
    x = 31,337.23

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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.