Home / 39,108.56-58,671.34-12,812.32

Finding the Fourth Proportional to 39,108.56, 58,671.34 and 12,812.32

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Solution

The fourth proportional to 39,108.56, 58,671.34 and 12,812.32 is: 19,221.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,108.56 : 58,671.34 = 12,812.32 : x
  2. Step 2: Convert to fraction form
    39,108.56/58,671.34 = 12,812.32/x
  3. Step 3: Cross multiply
    39,108.56x = 58,671.34 × 12,812.32
  4. Step 4: Simplify right side
    39,108.56x = 751,715,982.91
  5. Step 5: Solve for x
    x = 751,715,982.91/39,108.56
  6. Step 6: Final answer
    x = 19,221.26

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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.