Home / 28,351.05-42,536.13-12,553.93

Finding the Fourth Proportional to 28,351.05, 42,536.13 and 12,553.93

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Solution

The fourth proportional to 28,351.05, 42,536.13 and 12,553.93 is: 18,835.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,351.05 : 42,536.13 = 12,553.93 : x
  2. Step 2: Convert to fraction form
    28,351.05/42,536.13 = 12,553.93/x
  3. Step 3: Cross multiply
    28,351.05x = 42,536.13 × 12,553.93
  4. Step 4: Simplify right side
    28,351.05x = 533,995,385.81
  5. Step 5: Solve for x
    x = 533,995,385.81/28,351.05
  6. Step 6: Final answer
    x = 18,835.12

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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.