Home / 21,268.06-29,319.51-14,960.86

Finding the Fourth Proportional to 21,268.06, 29,319.51 and 14,960.86

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Solution

The fourth proportional to 21,268.06, 29,319.51 and 14,960.86 is: 20,624.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,268.06 : 29,319.51 = 14,960.86 : x
  2. Step 2: Convert to fraction form
    21,268.06/29,319.51 = 14,960.86/x
  3. Step 3: Cross multiply
    21,268.06x = 29,319.51 × 14,960.86
  4. Step 4: Simplify right side
    21,268.06x = 438,645,084.38
  5. Step 5: Solve for x
    x = 438,645,084.38/21,268.06
  6. Step 6: Final answer
    x = 20,624.59

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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.