Home / 31,723.08-47,579.28-10,660.74

Finding the Fourth Proportional to 31,723.08, 47,579.28 and 10,660.74

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Solution

The fourth proportional to 31,723.08, 47,579.28 and 10,660.74 is: 15,989.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,723.08 : 47,579.28 = 10,660.74 : x
  2. Step 2: Convert to fraction form
    31,723.08/47,579.28 = 10,660.74/x
  3. Step 3: Cross multiply
    31,723.08x = 47,579.28 × 10,660.74
  4. Step 4: Simplify right side
    31,723.08x = 507,230,333.47
  5. Step 5: Solve for x
    x = 507,230,333.47/31,723.08
  6. Step 6: Final answer
    x = 15,989.32

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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.