Home / 35,853.80-49,479.44-19,721.78

Finding the Fourth Proportional to 35,853.80, 49,479.44 and 19,721.78

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Solution

The fourth proportional to 35,853.80, 49,479.44 and 19,721.78 is: 27,216.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,853.80 : 49,479.44 = 19,721.78 : x
  2. Step 2: Convert to fraction form
    35,853.80/49,479.44 = 19,721.78/x
  3. Step 3: Cross multiply
    35,853.80x = 49,479.44 × 19,721.78
  4. Step 4: Simplify right side
    35,853.80x = 975,822,630.20
  5. Step 5: Solve for x
    x = 975,822,630.20/35,853.80
  6. Step 6: Final answer
    x = 27,216.71

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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.