Home / 29,280.14-40,405.16-16,534.78

Finding the Fourth Proportional to 29,280.14, 40,405.16 and 16,534.78

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Solution

The fourth proportional to 29,280.14, 40,405.16 and 16,534.78 is: 22,817.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,280.14 : 40,405.16 = 16,534.78 : x
  2. Step 2: Convert to fraction form
    29,280.14/40,405.16 = 16,534.78/x
  3. Step 3: Cross multiply
    29,280.14x = 40,405.16 × 16,534.78
  4. Step 4: Simplify right side
    29,280.14x = 668,090,431.46
  5. Step 5: Solve for x
    x = 668,090,431.46/29,280.14
  6. Step 6: Final answer
    x = 22,817.19

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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.