Home / 40,262.65-55,614.78-30,644.11

Finding the Fourth Proportional to 40,262.65, 55,614.78 and 30,644.11

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Solution

The fourth proportional to 40,262.65, 55,614.78 and 30,644.11 is: 42,328.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,262.65 : 55,614.78 = 30,644.11 : x
  2. Step 2: Convert to fraction form
    40,262.65/55,614.78 = 30,644.11/x
  3. Step 3: Cross multiply
    40,262.65x = 55,614.78 × 30,644.11
  4. Step 4: Simplify right side
    40,262.65x = 1,704,265,435.95
  5. Step 5: Solve for x
    x = 1,704,265,435.95/40,262.65
  6. Step 6: Final answer
    x = 42,328.70

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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.