Home / 31,809.85-47,707.48-14,284.69

Finding the Fourth Proportional to 31,809.85, 47,707.48 and 14,284.69

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Solution

The fourth proportional to 31,809.85, 47,707.48 and 14,284.69 is: 21,423.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,809.85 : 47,707.48 = 14,284.69 : x
  2. Step 2: Convert to fraction form
    31,809.85/47,707.48 = 14,284.69/x
  3. Step 3: Cross multiply
    31,809.85x = 47,707.48 × 14,284.69
  4. Step 4: Simplify right side
    31,809.85x = 681,486,461.07
  5. Step 5: Solve for x
    x = 681,486,461.07/31,809.85
  6. Step 6: Final answer
    x = 21,423.76

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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.