Home / 31,301.05-46,959.28-9,114.64

Finding the Fourth Proportional to 31,301.05, 46,959.28 and 9,114.64

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Solution

The fourth proportional to 31,301.05, 46,959.28 and 9,114.64 is: 13,674.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,301.05 : 46,959.28 = 9,114.64 : x
  2. Step 2: Convert to fraction form
    31,301.05/46,959.28 = 9,114.64/x
  3. Step 3: Cross multiply
    31,301.05x = 46,959.28 × 9,114.64
  4. Step 4: Simplify right side
    31,301.05x = 428,016,931.86
  5. Step 5: Solve for x
    x = 428,016,931.86/31,301.05
  6. Step 6: Final answer
    x = 13,674.20

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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.