Home / 33,117.31-45,681.33-20,542.06

Finding the Fourth Proportional to 33,117.31, 45,681.33 and 20,542.06

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Solution

The fourth proportional to 33,117.31, 45,681.33 and 20,542.06 is: 28,335.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,117.31 : 45,681.33 = 20,542.06 : x
  2. Step 2: Convert to fraction form
    33,117.31/45,681.33 = 20,542.06/x
  3. Step 3: Cross multiply
    33,117.31x = 45,681.33 × 20,542.06
  4. Step 4: Simplify right side
    33,117.31x = 938,388,621.74
  5. Step 5: Solve for x
    x = 938,388,621.74/33,117.31
  6. Step 6: Final answer
    x = 28,335.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.