Home / 39,271.32-58,906.10-9,689.40

Finding the Fourth Proportional to 39,271.32, 58,906.10 and 9,689.40

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Solution

The fourth proportional to 39,271.32, 58,906.10 and 9,689.40 is: 14,533.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,271.32 : 58,906.10 = 9,689.40 : x
  2. Step 2: Convert to fraction form
    39,271.32/58,906.10 = 9,689.40/x
  3. Step 3: Cross multiply
    39,271.32x = 58,906.10 × 9,689.40
  4. Step 4: Simplify right side
    39,271.32x = 570,764,716.89
  5. Step 5: Solve for x
    x = 570,764,716.89/39,271.32
  6. Step 6: Final answer
    x = 14,533.88

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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.