Home / 33,108.16-45,686.88-18,960.64

Finding the Fourth Proportional to 33,108.16, 45,686.88 and 18,960.64

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Solution

The fourth proportional to 33,108.16, 45,686.88 and 18,960.64 is: 26,164.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,108.16 : 45,686.88 = 18,960.64 : x
  2. Step 2: Convert to fraction form
    33,108.16/45,686.88 = 18,960.64/x
  3. Step 3: Cross multiply
    33,108.16x = 45,686.88 × 18,960.64
  4. Step 4: Simplify right side
    33,108.16x = 866,252,484.40
  5. Step 5: Solve for x
    x = 866,252,484.40/33,108.16
  6. Step 6: Final answer
    x = 26,164.32

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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.