Home / 31,346.58-47,038.26-11,638.80

Finding the Fourth Proportional to 31,346.58, 47,038.26 and 11,638.80

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Solution

The fourth proportional to 31,346.58, 47,038.26 and 11,638.80 is: 17,465.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,346.58 : 47,038.26 = 11,638.80 : x
  2. Step 2: Convert to fraction form
    31,346.58/47,038.26 = 11,638.80/x
  3. Step 3: Cross multiply
    31,346.58x = 47,038.26 × 11,638.80
  4. Step 4: Simplify right side
    31,346.58x = 547,468,900.49
  5. Step 5: Solve for x
    x = 547,468,900.49/31,346.58
  6. Step 6: Final answer
    x = 17,465.03

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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.