Home / 21,267.06-29,318.13-14,959.86

Finding the Fourth Proportional to 21,267.06, 29,318.13 and 14,959.86

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Solution

The fourth proportional to 21,267.06, 29,318.13 and 14,959.86 is: 20,623.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,267.06 : 29,318.13 = 14,959.86 : x
  2. Step 2: Convert to fraction form
    21,267.06/29,318.13 = 14,959.86/x
  3. Step 3: Cross multiply
    21,267.06x = 29,318.13 × 14,959.86
  4. Step 4: Simplify right side
    21,267.06x = 438,595,120.26
  5. Step 5: Solve for x
    x = 438,595,120.26/21,267.06
  6. Step 6: Final answer
    x = 20,623.21

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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.