Home / 33,118.28-45,702.32-18,780.74

Finding the Fourth Proportional to 33,118.28, 45,702.32 and 18,780.74

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Solution

The fourth proportional to 33,118.28, 45,702.32 and 18,780.74 is: 25,916.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,118.28 : 45,702.32 = 18,780.74 : x
  2. Step 2: Convert to fraction form
    33,118.28/45,702.32 = 18,780.74/x
  3. Step 3: Cross multiply
    33,118.28x = 45,702.32 × 18,780.74
  4. Step 4: Simplify right side
    33,118.28x = 858,323,389.32
  5. Step 5: Solve for x
    x = 858,323,389.32/33,118.28
  6. Step 6: Final answer
    x = 25,916.91

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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.