Home / 30,480.20-42,062.74-17,051.68

Finding the Fourth Proportional to 30,480.20, 42,062.74 and 17,051.68

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Solution

The fourth proportional to 30,480.20, 42,062.74 and 17,051.68 is: 23,531.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,480.20 : 42,062.74 = 17,051.68 : x
  2. Step 2: Convert to fraction form
    30,480.20/42,062.74 = 17,051.68/x
  3. Step 3: Cross multiply
    30,480.20x = 42,062.74 × 17,051.68
  4. Step 4: Simplify right side
    30,480.20x = 717,240,086.83
  5. Step 5: Solve for x
    x = 717,240,086.83/30,480.20
  6. Step 6: Final answer
    x = 23,531.34

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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.