Home / 39,913.28-59,814.32-20,168.79

Finding the Fourth Proportional to 39,913.28, 59,814.32 and 20,168.79

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Solution

The fourth proportional to 39,913.28, 59,814.32 and 20,168.79 is: 30,225.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,913.28 : 59,814.32 = 20,168.79 : x
  2. Step 2: Convert to fraction form
    39,913.28/59,814.32 = 20,168.79/x
  3. Step 3: Cross multiply
    39,913.28x = 59,814.32 × 20,168.79
  4. Step 4: Simplify right side
    39,913.28x = 1,206,382,133.93
  5. Step 5: Solve for x
    x = 1,206,382,133.93/39,913.28
  6. Step 6: Final answer
    x = 30,225.08

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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.