Home / 43,818.80-65,728.20-14,237.60

Finding the Fourth Proportional to 43,818.80, 65,728.20 and 14,237.60

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Solution

The fourth proportional to 43,818.80, 65,728.20 and 14,237.60 is: 21,356.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,818.80 : 65,728.20 = 14,237.60 : x
  2. Step 2: Convert to fraction form
    43,818.80/65,728.20 = 14,237.60/x
  3. Step 3: Cross multiply
    43,818.80x = 65,728.20 × 14,237.60
  4. Step 4: Simplify right side
    43,818.80x = 935,811,820.32
  5. Step 5: Solve for x
    x = 935,811,820.32/43,818.80
  6. Step 6: Final answer
    x = 21,356.40

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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.