Home / 42,918.39-64,377.63-13,336.26

Finding the Fourth Proportional to 42,918.39, 64,377.63 and 13,336.26

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Solution

The fourth proportional to 42,918.39, 64,377.63 and 13,336.26 is: 20,004.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,918.39 : 64,377.63 = 13,336.26 : x
  2. Step 2: Convert to fraction form
    42,918.39/64,377.63 = 13,336.26/x
  3. Step 3: Cross multiply
    42,918.39x = 64,377.63 × 13,336.26
  4. Step 4: Simplify right side
    42,918.39x = 858,556,811.86
  5. Step 5: Solve for x
    x = 858,556,811.86/42,918.39
  6. Step 6: Final answer
    x = 20,004.40

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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.