Home / 22,070.44-30,455.62-12,638.76

Finding the Fourth Proportional to 22,070.44, 30,455.62 and 12,638.76

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Solution

The fourth proportional to 22,070.44, 30,455.62 and 12,638.76 is: 17,440.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,070.44 : 30,455.62 = 12,638.76 : x
  2. Step 2: Convert to fraction form
    22,070.44/30,455.62 = 12,638.76/x
  3. Step 3: Cross multiply
    22,070.44x = 30,455.62 × 12,638.76
  4. Step 4: Simplify right side
    22,070.44x = 384,921,271.83
  5. Step 5: Solve for x
    x = 384,921,271.83/22,070.44
  6. Step 6: Final answer
    x = 17,440.58

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Half scale
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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.