Home / 42,786.36-64,180.42-13,204.22

Finding the Fourth Proportional to 42,786.36, 64,180.42 and 13,204.22

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Solution

The fourth proportional to 42,786.36, 64,180.42 and 13,204.22 is: 19,806.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,786.36 : 64,180.42 = 13,204.22 : x
  2. Step 2: Convert to fraction form
    42,786.36/64,180.42 = 13,204.22/x
  3. Step 3: Cross multiply
    42,786.36x = 64,180.42 × 13,204.22
  4. Step 4: Simplify right side
    42,786.36x = 847,452,031.46
  5. Step 5: Solve for x
    x = 847,452,031.46/42,786.36
  6. Step 6: Final answer
    x = 19,806.59

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1.5x scale

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.