Home / 30,139.61-45,218.24-13,495.93

Finding the Fourth Proportional to 30,139.61, 45,218.24 and 13,495.93

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Solution

The fourth proportional to 30,139.61, 45,218.24 and 13,495.93 is: 20,247.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,139.61 : 45,218.24 = 13,495.93 : x
  2. Step 2: Convert to fraction form
    30,139.61/45,218.24 = 13,495.93/x
  3. Step 3: Cross multiply
    30,139.61x = 45,218.24 × 13,495.93
  4. Step 4: Simplify right side
    30,139.61x = 610,262,201.76
  5. Step 5: Solve for x
    x = 610,262,201.76/30,139.61
  6. Step 6: Final answer
    x = 20,247.85

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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.