Home / 33,987.12-46,919.28-21,247.38

Finding the Fourth Proportional to 33,987.12, 46,919.28 and 21,247.38

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Solution

The fourth proportional to 33,987.12, 46,919.28 and 21,247.38 is: 29,332.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,987.12 : 46,919.28 = 21,247.38 : x
  2. Step 2: Convert to fraction form
    33,987.12/46,919.28 = 21,247.38/x
  3. Step 3: Cross multiply
    33,987.12x = 46,919.28 × 21,247.38
  4. Step 4: Simplify right side
    33,987.12x = 996,911,771.49
  5. Step 5: Solve for x
    x = 996,911,771.49/33,987.12
  6. Step 6: Final answer
    x = 29,332.05

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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.