Home / 39,015.61-58,523.37-12,720.31

Finding the Fourth Proportional to 39,015.61, 58,523.37 and 12,720.31

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Solution

The fourth proportional to 39,015.61, 58,523.37 and 12,720.31 is: 19,080.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,015.61 : 58,523.37 = 12,720.31 : x
  2. Step 2: Convert to fraction form
    39,015.61/58,523.37 = 12,720.31/x
  3. Step 3: Cross multiply
    39,015.61x = 58,523.37 × 12,720.31
  4. Step 4: Simplify right side
    39,015.61x = 744,435,408.64
  5. Step 5: Solve for x
    x = 744,435,408.64/39,015.61
  6. Step 6: Final answer
    x = 19,080.45

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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.