Home / 55,498.32-83,203.74-20,418.84

Finding the Fourth Proportional to 55,498.32, 83,203.74 and 20,418.84

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Solution

The fourth proportional to 55,498.32, 83,203.74 and 20,418.84 is: 30,612.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,498.32 : 83,203.74 = 20,418.84 : x
  2. Step 2: Convert to fraction form
    55,498.32/83,203.74 = 20,418.84/x
  3. Step 3: Cross multiply
    55,498.32x = 83,203.74 × 20,418.84
  4. Step 4: Simplify right side
    55,498.32x = 1,698,923,854.46
  5. Step 5: Solve for x
    x = 1,698,923,854.46/55,498.32
  6. Step 6: Final answer
    x = 30,612.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.