Home / 43,728.71-65,602.80-14,145.89

Finding the Fourth Proportional to 43,728.71, 65,602.80 and 14,145.89

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Solution

The fourth proportional to 43,728.71, 65,602.80 and 14,145.89 is: 21,221.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,728.71 : 65,602.80 = 14,145.89 : x
  2. Step 2: Convert to fraction form
    43,728.71/65,602.80 = 14,145.89/x
  3. Step 3: Cross multiply
    43,728.71x = 65,602.80 × 14,145.89
  4. Step 4: Simplify right side
    43,728.71x = 928,009,664.48
  5. Step 5: Solve for x
    x = 928,009,664.48/43,728.71
  6. Step 6: Final answer
    x = 21,221.98

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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.