Home / 35,780.72-49,375.10-19,865.16

Finding the Fourth Proportional to 35,780.72, 49,375.10 and 19,865.16

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Solution

The fourth proportional to 35,780.72, 49,375.10 and 19,865.16 is: 27,412.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,780.72 : 49,375.10 = 19,865.16 : x
  2. Step 2: Convert to fraction form
    35,780.72/49,375.10 = 19,865.16/x
  3. Step 3: Cross multiply
    35,780.72x = 49,375.10 × 19,865.16
  4. Step 4: Simplify right side
    35,780.72x = 980,844,311.18
  5. Step 5: Solve for x
    x = 980,844,311.18/35,780.72
  6. Step 6: Final answer
    x = 27,412.65

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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.