Home / 40,095.45-55,330.02-22,188.78

Finding the Fourth Proportional to 40,095.45, 55,330.02 and 22,188.78

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Solution

The fourth proportional to 40,095.45, 55,330.02 and 22,188.78 is: 30,619.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,095.45 : 55,330.02 = 22,188.78 : x
  2. Step 2: Convert to fraction form
    40,095.45/55,330.02 = 22,188.78/x
  3. Step 3: Cross multiply
    40,095.45x = 55,330.02 × 22,188.78
  4. Step 4: Simplify right side
    40,095.45x = 1,227,705,641.18
  5. Step 5: Solve for x
    x = 1,227,705,641.18/40,095.45
  6. Step 6: Final answer
    x = 30,619.58

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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.