Home / 39,213.40-58,821.48-12,560.20

Finding the Fourth Proportional to 39,213.40, 58,821.48 and 12,560.20

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Solution

The fourth proportional to 39,213.40, 58,821.48 and 12,560.20 is: 18,840.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,213.40 : 58,821.48 = 12,560.20 : x
  2. Step 2: Convert to fraction form
    39,213.40/58,821.48 = 12,560.20/x
  3. Step 3: Cross multiply
    39,213.40x = 58,821.48 × 12,560.20
  4. Step 4: Simplify right side
    39,213.40x = 738,809,272.20
  5. Step 5: Solve for x
    x = 738,809,272.20/39,213.40
  6. Step 6: Final answer
    x = 18,840.74

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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.