Home / 33,126.28-45,715.86-18,979.16

Finding the Fourth Proportional to 33,126.28, 45,715.86 and 18,979.16

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Solution

The fourth proportional to 33,126.28, 45,715.86 and 18,979.16 is: 26,192.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,126.28 : 45,715.86 = 18,979.16 : x
  2. Step 2: Convert to fraction form
    33,126.28/45,715.86 = 18,979.16/x
  3. Step 3: Cross multiply
    33,126.28x = 45,715.86 × 18,979.16
  4. Step 4: Simplify right side
    33,126.28x = 867,648,621.48
  5. Step 5: Solve for x
    x = 867,648,621.48/33,126.28
  6. Step 6: Final answer
    x = 26,192.15

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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.