Home / 21,268.71-29,360.88-14,199.84

Finding the Fourth Proportional to 21,268.71, 29,360.88 and 14,199.84

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Solution

The fourth proportional to 21,268.71, 29,360.88 and 14,199.84 is: 19,602.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,268.71 : 29,360.88 = 14,199.84 : x
  2. Step 2: Convert to fraction form
    21,268.71/29,360.88 = 14,199.84/x
  3. Step 3: Cross multiply
    21,268.71x = 29,360.88 × 14,199.84
  4. Step 4: Simplify right side
    21,268.71x = 416,919,798.26
  5. Step 5: Solve for x
    x = 416,919,798.26/21,268.71
  6. Step 6: Final answer
    x = 19,602.50

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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.