Home / 21,959.13-30,282.85-14,412.00

Finding the Fourth Proportional to 21,959.13, 30,282.85 and 14,412.00

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Solution

The fourth proportional to 21,959.13, 30,282.85 and 14,412.00 is: 19,874.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,959.13 : 30,282.85 = 14,412.00 : x
  2. Step 2: Convert to fraction form
    21,959.13/30,282.85 = 14,412.00/x
  3. Step 3: Cross multiply
    21,959.13x = 30,282.85 × 14,412.00
  4. Step 4: Simplify right side
    21,959.13x = 436,436,460.34
  5. Step 5: Solve for x
    x = 436,436,460.34/21,959.13
  6. Step 6: Final answer
    x = 19,874.95

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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.