Home / 31,001.22-46,489.86-13,220.64

Finding the Fourth Proportional to 31,001.22, 46,489.86 and 13,220.64

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Solution

The fourth proportional to 31,001.22, 46,489.86 and 13,220.64 is: 19,825.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,001.22 : 46,489.86 = 13,220.64 : x
  2. Step 2: Convert to fraction form
    31,001.22/46,489.86 = 13,220.64/x
  3. Step 3: Cross multiply
    31,001.22x = 46,489.86 × 13,220.64
  4. Step 4: Simplify right side
    31,001.22x = 614,625,702.71
  5. Step 5: Solve for x
    x = 614,625,702.71/31,001.22
  6. Step 6: Final answer
    x = 19,825.86

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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.