Home / 40,243.72-60,345.30-13,941.40

Finding the Fourth Proportional to 40,243.72, 60,345.30 and 13,941.40

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Solution

The fourth proportional to 40,243.72, 60,345.30 and 13,941.40 is: 20,905.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,243.72 : 60,345.30 = 13,941.40 : x
  2. Step 2: Convert to fraction form
    40,243.72/60,345.30 = 13,941.40/x
  3. Step 3: Cross multiply
    40,243.72x = 60,345.30 × 13,941.40
  4. Step 4: Simplify right side
    40,243.72x = 841,297,965.42
  5. Step 5: Solve for x
    x = 841,297,965.42/40,243.72
  6. Step 6: Final answer
    x = 20,905.07

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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.