Home / 39,313.81-58,942.91-12,651.55

Finding the Fourth Proportional to 39,313.81, 58,942.91 and 12,651.55

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Solution

The fourth proportional to 39,313.81, 58,942.91 and 12,651.55 is: 18,968.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,313.81 : 58,942.91 = 12,651.55 : x
  2. Step 2: Convert to fraction form
    39,313.81/58,942.91 = 12,651.55/x
  3. Step 3: Cross multiply
    39,313.81x = 58,942.91 × 12,651.55
  4. Step 4: Simplify right side
    39,313.81x = 745,719,057.28
  5. Step 5: Solve for x
    x = 745,719,057.28/39,313.81
  6. Step 6: Final answer
    x = 18,968.38

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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.