Home / 39,120.20-58,659.12-13,807.04

Finding the Fourth Proportional to 39,120.20, 58,659.12 and 13,807.04

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Solution

The fourth proportional to 39,120.20, 58,659.12 and 13,807.04 is: 20,703.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,120.20 : 58,659.12 = 13,807.04 : x
  2. Step 2: Convert to fraction form
    39,120.20/58,659.12 = 13,807.04/x
  3. Step 3: Cross multiply
    39,120.20x = 58,659.12 × 13,807.04
  4. Step 4: Simplify right side
    39,120.20x = 809,908,816.20
  5. Step 5: Solve for x
    x = 809,908,816.20/39,120.20
  6. Step 6: Final answer
    x = 20,703.08

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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.