Home / 43,679.47-65,460.08-19,957.81

Finding the Fourth Proportional to 43,679.47, 65,460.08 and 19,957.81

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Solution

The fourth proportional to 43,679.47, 65,460.08 and 19,957.81 is: 29,909.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,679.47 : 65,460.08 = 19,957.81 : x
  2. Step 2: Convert to fraction form
    43,679.47/65,460.08 = 19,957.81/x
  3. Step 3: Cross multiply
    43,679.47x = 65,460.08 × 19,957.81
  4. Step 4: Simplify right side
    43,679.47x = 1,306,439,725.47
  5. Step 5: Solve for x
    x = 1,306,439,725.47/43,679.47
  6. Step 6: Final answer
    x = 29,909.70

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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.