Home / 21,768.60-30,008.52-16,983.16

Finding the Fourth Proportional to 21,768.60, 30,008.52 and 16,983.16

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Solution

The fourth proportional to 21,768.60, 30,008.52 and 16,983.16 is: 23,411.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,768.60 : 30,008.52 = 16,983.16 : x
  2. Step 2: Convert to fraction form
    21,768.60/30,008.52 = 16,983.16/x
  3. Step 3: Cross multiply
    21,768.60x = 30,008.52 × 16,983.16
  4. Step 4: Simplify right side
    21,768.60x = 509,639,496.52
  5. Step 5: Solve for x
    x = 509,639,496.52/21,768.60
  6. Step 6: Final answer
    x = 23,411.68

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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.