Home / 20,954.26-31,411.95-11,085.22

Finding the Fourth Proportional to 20,954.26, 31,411.95 and 11,085.22

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Solution

The fourth proportional to 20,954.26, 31,411.95 and 11,085.22 is: 16,617.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,954.26 : 31,411.95 = 11,085.22 : x
  2. Step 2: Convert to fraction form
    20,954.26/31,411.95 = 11,085.22/x
  3. Step 3: Cross multiply
    20,954.26x = 31,411.95 × 11,085.22
  4. Step 4: Simplify right side
    20,954.26x = 348,208,376.38
  5. Step 5: Solve for x
    x = 348,208,376.38/20,954.26
  6. Step 6: Final answer
    x = 16,617.55

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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.