Home / 31,026.40-46,516.16-15,455.04

Finding the Fourth Proportional to 31,026.40, 46,516.16 and 15,455.04

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Solution

The fourth proportional to 31,026.40, 46,516.16 and 15,455.04 is: 23,170.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,026.40 : 46,516.16 = 15,455.04 : x
  2. Step 2: Convert to fraction form
    31,026.40/46,516.16 = 15,455.04/x
  3. Step 3: Cross multiply
    31,026.40x = 46,516.16 × 15,455.04
  4. Step 4: Simplify right side
    31,026.40x = 718,909,113.45
  5. Step 5: Solve for x
    x = 718,909,113.45/31,026.40
  6. Step 6: Final answer
    x = 23,170.88

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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.