Home / 35,397.80-48,843.36-20,287.55

Finding the Fourth Proportional to 35,397.80, 48,843.36 and 20,287.55

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Solution

The fourth proportional to 35,397.80, 48,843.36 and 20,287.55 is: 27,993.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,397.80 : 48,843.36 = 20,287.55 : x
  2. Step 2: Convert to fraction form
    35,397.80/48,843.36 = 20,287.55/x
  3. Step 3: Cross multiply
    35,397.80x = 48,843.36 × 20,287.55
  4. Step 4: Simplify right side
    35,397.80x = 990,911,863.95
  5. Step 5: Solve for x
    x = 990,911,863.95/35,397.80
  6. Step 6: Final answer
    x = 27,993.60

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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.