Home / 22,271.96-30,714.09-13,318.01

Finding the Fourth Proportional to 22,271.96, 30,714.09 and 13,318.01

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Solution

The fourth proportional to 22,271.96, 30,714.09 and 13,318.01 is: 18,366.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,271.96 : 30,714.09 = 13,318.01 : x
  2. Step 2: Convert to fraction form
    22,271.96/30,714.09 = 13,318.01/x
  3. Step 3: Cross multiply
    22,271.96x = 30,714.09 × 13,318.01
  4. Step 4: Simplify right side
    22,271.96x = 409,050,557.76
  5. Step 5: Solve for x
    x = 409,050,557.76/22,271.96
  6. Step 6: Final answer
    x = 18,366.17

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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.