Home / 31,810.85-47,708.98-14,285.69

Finding the Fourth Proportional to 31,810.85, 47,708.98 and 14,285.69

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Solution

The fourth proportional to 31,810.85, 47,708.98 and 14,285.69 is: 21,425.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,810.85 : 47,708.98 = 14,285.69 : x
  2. Step 2: Convert to fraction form
    31,810.85/47,708.98 = 14,285.69/x
  3. Step 3: Cross multiply
    31,810.85x = 47,708.98 × 14,285.69
  4. Step 4: Simplify right side
    31,810.85x = 681,555,698.50
  5. Step 5: Solve for x
    x = 681,555,698.50/31,810.85
  6. Step 6: Final answer
    x = 21,425.26

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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.