Home / 31,630.17-43,653.98-18,201.15

Finding the Fourth Proportional to 31,630.17, 43,653.98 and 18,201.15

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Solution

The fourth proportional to 31,630.17, 43,653.98 and 18,201.15 is: 25,120.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,630.17 : 43,653.98 = 18,201.15 : x
  2. Step 2: Convert to fraction form
    31,630.17/43,653.98 = 18,201.15/x
  3. Step 3: Cross multiply
    31,630.17x = 43,653.98 × 18,201.15
  4. Step 4: Simplify right side
    31,630.17x = 794,552,547.07
  5. Step 5: Solve for x
    x = 794,552,547.07/31,630.17
  6. Step 6: Final answer
    x = 25,120.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.