Home / 21,301.43-31,949.96-9,455.40

Finding the Fourth Proportional to 21,301.43, 31,949.96 and 9,455.40

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Solution

The fourth proportional to 21,301.43, 31,949.96 and 9,455.40 is: 14,182.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,301.43 : 31,949.96 = 9,455.40 : x
  2. Step 2: Convert to fraction form
    21,301.43/31,949.96 = 9,455.40/x
  3. Step 3: Cross multiply
    21,301.43x = 31,949.96 × 9,455.40
  4. Step 4: Simplify right side
    21,301.43x = 302,099,604.51
  5. Step 5: Solve for x
    x = 302,099,604.51/21,301.43
  6. Step 6: Final answer
    x = 14,182.13

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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.