Home / 39,820.22-59,738.97-12,117.50

Finding the Fourth Proportional to 39,820.22, 59,738.97 and 12,117.50

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Solution

The fourth proportional to 39,820.22, 59,738.97 and 12,117.50 is: 18,178.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,820.22 : 59,738.97 = 12,117.50 : x
  2. Step 2: Convert to fraction form
    39,820.22/59,738.97 = 12,117.50/x
  3. Step 3: Cross multiply
    39,820.22x = 59,738.97 × 12,117.50
  4. Step 4: Simplify right side
    39,820.22x = 723,886,968.98
  5. Step 5: Solve for x
    x = 723,886,968.98/39,820.22
  6. Step 6: Final answer
    x = 18,178.88

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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.