Home / 39,138.39-58,633.77-30,330.25

Finding the Fourth Proportional to 39,138.39, 58,633.77 and 30,330.25

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Solution

The fourth proportional to 39,138.39, 58,633.77 and 30,330.25 is: 45,438.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,138.39 : 58,633.77 = 30,330.25 : x
  2. Step 2: Convert to fraction form
    39,138.39/58,633.77 = 30,330.25/x
  3. Step 3: Cross multiply
    39,138.39x = 58,633.77 × 30,330.25
  4. Step 4: Simplify right side
    39,138.39x = 1,778,376,869.70
  5. Step 5: Solve for x
    x = 1,778,376,869.70/39,138.39
  6. Step 6: Final answer
    x = 45,438.17

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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.