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Finding the Fourth Proportional to 43,903.68, 65,870.30 and 13,922.83

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Solution

The fourth proportional to 43,903.68, 65,870.30 and 13,922.83 is: 20,888.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,903.68 : 65,870.30 = 13,922.83 : x
  2. Step 2: Convert to fraction form
    43,903.68/65,870.30 = 13,922.83/x
  3. Step 3: Cross multiply
    43,903.68x = 65,870.30 × 13,922.83
  4. Step 4: Simplify right side
    43,903.68x = 917,100,988.95
  5. Step 5: Solve for x
    x = 917,100,988.95/43,903.68
  6. Step 6: Final answer
    x = 20,888.93

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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.