Home / 39,140.38-58,720.17-18,339.58

Finding the Fourth Proportional to 39,140.38, 58,720.17 and 18,339.58

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Solution

The fourth proportional to 39,140.38, 58,720.17 and 18,339.58 is: 27,513.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,140.38 : 58,720.17 = 18,339.58 : x
  2. Step 2: Convert to fraction form
    39,140.38/58,720.17 = 18,339.58/x
  3. Step 3: Cross multiply
    39,140.38x = 58,720.17 × 18,339.58
  4. Step 4: Simplify right side
    39,140.38x = 1,076,903,255.33
  5. Step 5: Solve for x
    x = 1,076,903,255.33/39,140.38
  6. Step 6: Final answer
    x = 27,513.87

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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.