Home / 23,780.40-35,657.10-8,989.80

Finding the Fourth Proportional to 23,780.40, 35,657.10 and 8,989.80

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Solution

The fourth proportional to 23,780.40, 35,657.10 and 8,989.80 is: 13,479.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,780.40 : 35,657.10 = 8,989.80 : x
  2. Step 2: Convert to fraction form
    23,780.40/35,657.10 = 8,989.80/x
  3. Step 3: Cross multiply
    23,780.40x = 35,657.10 × 8,989.80
  4. Step 4: Simplify right side
    23,780.40x = 320,550,197.58
  5. Step 5: Solve for x
    x = 320,550,197.58/23,780.40
  6. Step 6: Final answer
    x = 13,479.60

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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.