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Finding the Fourth Proportional to 29,283.08, 40,324.02 and 28,669.64

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Solution

The fourth proportional to 29,283.08, 40,324.02 and 28,669.64 is: 39,479.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,283.08 : 40,324.02 = 28,669.64 : x
  2. Step 2: Convert to fraction form
    29,283.08/40,324.02 = 28,669.64/x
  3. Step 3: Cross multiply
    29,283.08x = 40,324.02 × 28,669.64
  4. Step 4: Simplify right side
    29,283.08x = 1,156,075,136.75
  5. Step 5: Solve for x
    x = 1,156,075,136.75/29,283.08
  6. Step 6: Final answer
    x = 39,479.29

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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.