Home / 33,117.77-45,702.32-18,780.32

Finding the Fourth Proportional to 33,117.77, 45,702.32 and 18,780.32

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Solution

The fourth proportional to 33,117.77, 45,702.32 and 18,780.32 is: 25,916.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,117.77 : 45,702.32 = 18,780.32 : x
  2. Step 2: Convert to fraction form
    33,117.77/45,702.32 = 18,780.32/x
  3. Step 3: Cross multiply
    33,117.77x = 45,702.32 × 18,780.32
  4. Step 4: Simplify right side
    33,117.77x = 858,304,100.44
  5. Step 5: Solve for x
    x = 858,304,100.44/33,117.77
  6. Step 6: Final answer
    x = 25,916.72

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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.