Home / 40,428.81-60,617.77-12,339.52

Finding the Fourth Proportional to 40,428.81, 60,617.77 and 12,339.52

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Solution

The fourth proportional to 40,428.81, 60,617.77 and 12,339.52 is: 18,501.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,428.81 : 60,617.77 = 12,339.52 : x
  2. Step 2: Convert to fraction form
    40,428.81/60,617.77 = 12,339.52/x
  3. Step 3: Cross multiply
    40,428.81x = 60,617.77 × 12,339.52
  4. Step 4: Simplify right side
    40,428.81x = 747,994,002.88
  5. Step 5: Solve for x
    x = 747,994,002.88/40,428.81
  6. Step 6: Final answer
    x = 18,501.51

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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.