Home / 35,811.39-53,717.63-12,438.39

Finding the Fourth Proportional to 35,811.39, 53,717.63 and 12,438.39

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Solution

The fourth proportional to 35,811.39, 53,717.63 and 12,438.39 is: 18,657.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,811.39 : 53,717.63 = 12,438.39 : x
  2. Step 2: Convert to fraction form
    35,811.39/53,717.63 = 12,438.39/x
  3. Step 3: Cross multiply
    35,811.39x = 53,717.63 × 12,438.39
  4. Step 4: Simplify right side
    35,811.39x = 668,160,769.62
  5. Step 5: Solve for x
    x = 668,160,769.62/35,811.39
  6. Step 6: Final answer
    x = 18,657.77

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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.