Home / 21,766.80-30,027.51-14,209.64

Finding the Fourth Proportional to 21,766.80, 30,027.51 and 14,209.64

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Solution

The fourth proportional to 21,766.80, 30,027.51 and 14,209.64 is: 19,602.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,766.80 : 30,027.51 = 14,209.64 : x
  2. Step 2: Convert to fraction form
    21,766.80/30,027.51 = 14,209.64/x
  3. Step 3: Cross multiply
    21,766.80x = 30,027.51 × 14,209.64
  4. Step 4: Simplify right side
    21,766.80x = 426,679,957.06
  5. Step 5: Solve for x
    x = 426,679,957.06/21,766.80
  6. Step 6: Final answer
    x = 19,602.33

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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.