Home / 53,304.69-79,947.36-13,859.36

Finding the Fourth Proportional to 53,304.69, 79,947.36 and 13,859.36

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Solution

The fourth proportional to 53,304.69, 79,947.36 and 13,859.36 is: 20,786.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,304.69 : 79,947.36 = 13,859.36 : x
  2. Step 2: Convert to fraction form
    53,304.69/79,947.36 = 13,859.36/x
  3. Step 3: Cross multiply
    53,304.69x = 79,947.36 × 13,859.36
  4. Step 4: Simplify right side
    53,304.69x = 1,108,018,843.55
  5. Step 5: Solve for x
    x = 1,108,018,843.55/53,304.69
  6. Step 6: Final answer
    x = 20,786.52

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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.