Home / 31,615.66-47,409.45-16,821.46

Finding the Fourth Proportional to 31,615.66, 47,409.45 and 16,821.46

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Solution

The fourth proportional to 31,615.66, 47,409.45 and 16,821.46 is: 25,224.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,615.66 : 47,409.45 = 16,821.46 : x
  2. Step 2: Convert to fraction form
    31,615.66/47,409.45 = 16,821.46/x
  3. Step 3: Cross multiply
    31,615.66x = 47,409.45 × 16,821.46
  4. Step 4: Simplify right side
    31,615.66x = 797,496,166.80
  5. Step 5: Solve for x
    x = 797,496,166.80/31,615.66
  6. Step 6: Final answer
    x = 25,224.72

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1.5x scale

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.