Home / 30,336.40-45,531.60-17,840.80

Finding the Fourth Proportional to 30,336.40, 45,531.60 and 17,840.80

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Solution

The fourth proportional to 30,336.40, 45,531.60 and 17,840.80 is: 26,777.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,336.40 : 45,531.60 = 17,840.80 : x
  2. Step 2: Convert to fraction form
    30,336.40/45,531.60 = 17,840.80/x
  3. Step 3: Cross multiply
    30,336.40x = 45,531.60 × 17,840.80
  4. Step 4: Simplify right side
    30,336.40x = 812,320,169.28
  5. Step 5: Solve for x
    x = 812,320,169.28/30,336.40
  6. Step 6: Final answer
    x = 26,777.08

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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.