Home / 21,983.84-30,337.04-12,550.56

Finding the Fourth Proportional to 21,983.84, 30,337.04 and 12,550.56

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Solution

The fourth proportional to 21,983.84, 30,337.04 and 12,550.56 is: 17,319.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,983.84 : 30,337.04 = 12,550.56 : x
  2. Step 2: Convert to fraction form
    21,983.84/30,337.04 = 12,550.56/x
  3. Step 3: Cross multiply
    21,983.84x = 30,337.04 × 12,550.56
  4. Step 4: Simplify right side
    21,983.84x = 380,746,840.74
  5. Step 5: Solve for x
    x = 380,746,840.74/21,983.84
  6. Step 6: Final answer
    x = 17,319.40

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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.