Home / 33,108.80-45,689.28-19,680.08

Finding the Fourth Proportional to 33,108.80, 45,689.28 and 19,680.08

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Solution

The fourth proportional to 33,108.80, 45,689.28 and 19,680.08 is: 27,158.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,108.80 : 45,689.28 = 19,680.08 : x
  2. Step 2: Convert to fraction form
    33,108.80/45,689.28 = 19,680.08/x
  3. Step 3: Cross multiply
    33,108.80x = 45,689.28 × 19,680.08
  4. Step 4: Simplify right side
    33,108.80x = 899,168,685.54
  5. Step 5: Solve for x
    x = 899,168,685.54/33,108.80
  6. Step 6: Final answer
    x = 27,158.00

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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.