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Finding the Fourth Proportional to 56,309.67, 84,467.75 and 18,868.23

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Solution

The fourth proportional to 56,309.67, 84,467.75 and 18,868.23 is: 28,303.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,309.67 : 84,467.75 = 18,868.23 : x
  2. Step 2: Convert to fraction form
    56,309.67/84,467.75 = 18,868.23/x
  3. Step 3: Cross multiply
    56,309.67x = 84,467.75 × 18,868.23
  4. Step 4: Simplify right side
    56,309.67x = 1,593,756,840.24
  5. Step 5: Solve for x
    x = 1,593,756,840.24/56,309.67
  6. Step 6: Final answer
    x = 28,303.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.