Home / 21,295.95-31,954.88-11,454.45

Finding the Fourth Proportional to 21,295.95, 31,954.88 and 11,454.45

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Solution

The fourth proportional to 21,295.95, 31,954.88 and 11,454.45 is: 17,187.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,295.95 : 31,954.88 = 11,454.45 : x
  2. Step 2: Convert to fraction form
    21,295.95/31,954.88 = 11,454.45/x
  3. Step 3: Cross multiply
    21,295.95x = 31,954.88 × 11,454.45
  4. Step 4: Simplify right side
    21,295.95x = 366,025,575.22
  5. Step 5: Solve for x
    x = 366,025,575.22/21,295.95
  6. Step 6: Final answer
    x = 17,187.57

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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.