Home / 31,459.08-47,166.72-13,919.32

Finding the Fourth Proportional to 31,459.08, 47,166.72 and 13,919.32

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Solution

The fourth proportional to 31,459.08, 47,166.72 and 13,919.32 is: 20,869.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,459.08 : 47,166.72 = 13,919.32 : x
  2. Step 2: Convert to fraction form
    31,459.08/47,166.72 = 13,919.32/x
  3. Step 3: Cross multiply
    31,459.08x = 47,166.72 × 13,919.32
  4. Step 4: Simplify right side
    31,459.08x = 656,528,669.03
  5. Step 5: Solve for x
    x = 656,528,669.03/31,459.08
  6. Step 6: Final answer
    x = 20,869.29

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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.